Here's a compiled list of specials for people who appreciate a bargain (current as of Aug 24, 2008).  All specials that vary are listed as Other Dinner Specials.  Prices are only listed if they could be verified.  All specials that were not verifiable, either through the restaurant’s web site, another reputable site, or a recent review have been eliminated.  This list is not all-inclusive and there may be other specials available.

While most of these specials have been in place for long periods of time, they are of course subject to change - either being eliminated or the price going up; both Fiesta casinos seem to change their specials quite often, as does the Cannery and Marilyn’s Café at the Tuscany

For many of these, at least one member of the party must have the casino’s slot card and many are available only to persons 21 years of age and older.

Steak Dinners (24 hours)

Ellis Island: 10 oz. Sirloin, salad, baked potato w/free freshly brewed root beer or beer , 6.99 (not on menu, must ask for it)
Orleans (Courtyard Café): 16 oz. T-Bone, 11.95
Gold Coast (Monterey Room): 16 oz. T-Bone, 9.95
Sun Coast (Siena Café): 16 oz. Porterhouse, 11.99  
Terrible’s (Bougainvillea Café): T-Bone, 9.99 (not on menu, ask)
Hard Rock (Mr. Lucky’s): Steak and three Shrimp, 7.77 Gambler’s Special (not on menu, ask)
Arizona Charlie’s Boulder (Sourdough Cafe): 14 oz. Porterhouse,  9.99 
Ellis Island: Top Sirloin and 5 Shrimp, 9.99 
Best Western Mardi Gras (Paradise Rd): Steak & Shrimp, 9.95                                                                
Sun Coast (Café Siena):  16 oz Porterhouse 11.99

Steak Dinners (limited hours)

Riviera: Kady’s T-Bone Steak 12.95 (10PM-6AM, closed Friday nights)
Golden Gate (Bay City Diner): 16 oz. Porterhouse, 14.99 (11AM-Midnight)                              
El Cortez (Kitty’s Café):  New York Steak dinner 7.95 (11PM-7AM)                                    
Sahara (Caravan Café):  T-bone 13.99 (4:30PM-7PM)                                                             

Steak & Eggs (24 hours)

Sam’s Town: 3.99
Arizona Charlie’s Decatur (Sourdough Cafe): 6oz New York Steak 3.29                          
Binion’s (coffee Shop):  New York Steak 8.95
Arizona Charlie’s Boulder (Sourdough Cafe): New York Steak 3.29 
Ellis Island: 8.99                                                                                                                    
Cannery (Victory’s Café): 8oz Rib Eye Steak 8.99

Steak & Eggs (limited hours) 

Orleans (Courtyard Cafe): 3.95 (Mon-Thu, Midnight-6AM)
Golden Gate (Bay City Diner): 4.99, NY Steak (Midnight-2AM)
Ellis Island: 3.45, NY Steak (11PM-11AM)  
JW Marriott LV Resort (Promenade Café): 3.21 New York or Ham Steak 12AM-5AM                                 
Tuscany (Marilyn’s Café):  Graveyard Special, 3.99 (11PM-6AM)                                             
El Cortez (Kitty’s Café):  7.95 (11PM-7AM) 

Prime Rib Dinners (24 hours)

Orleans (Courtyard Café): 11.95
Ellis Island:  includes Ellis Island beer or root beer & baked potato  10.99
Arizona Charlie’s Decatur (Sourdough Cafe):  8 oz 8.50/12 oz 10.99 (11AM-10PM)
Sun Coast (Café Siena): 9.99  

Prime Rib Dinners (limited hours)

Sahara (Caravan Café): 8.99 (2.00 off for slot club members) (4:30PM-7PM)
Circus Circus (Pink Pony Café): 10.99 (Sun-Thur, 3PM-11PM, excluding holidays) 
Wildfire:  Prime Friday’s, 8 oz Prime Rib w/choice of potatoes, 9.99 (Fri starting at 4PM, not available at all Wildfire Casinos)                                                                                           
Arizona Charlie’s Boulder (Wild West Buffet): Prime Rib Dinner 8.99 w/slot card/10.99 w/o (Fri-Sat, 4PM-9PM, Sun 4PM-9PM)                                                                                          
Joker’s Wild (Court Café):  9.99 {11AM-10PM)                                                                              
Sun Coast (Café Siena):  Roasted prime Rib 9.99 (11AM-11PM)

Four Queens (Magnolia's) $7.98 w/potato choice, veggie (w/players club card), nightly

Binion's Coffee Shop (Friday evening Prime Rib Special $9.99 - $6.99 w/Players Cards (each person in party must have card)  No wait.  7/14/09

Hamburgers

Wild Wild West (Loose Trax Bar & Lounge):  Wild Burger Meal (includes fries), 2.99
Wildfire:  Wild Burger Meal, 2.99 (available at all 3 Wildfire Casinos)                                          
Arizona Charlie’s Decatur (Sourdough Café): Classic Belly Bomber Burger, ½ Lb 50’s style burger, 4.99                                                                                                                             
California (Aloha Specialties): Hamburger w/Macaroni Salad, 2.85 Available 24 Hrs                                     
California (Aloha Specialties): Teri Burger w/Macaroni Salad, 2.85 Sun-Thu 9AM-9PM, Fri 9AM-10PM

Hot Dogs

Gold Coast (Sports Book, vendor’s cart): .75 (10AM-6:45PM)
MGM Grand (cart near Monorail Station) 3.50 Nathan’s hot dog                                           
Circus Circus (Westside Deli) 2.50 Giant hot dog

Ribs                                                                                        

Boulder Station (Boulder Café):  BBQ Pork Rib dinner (w/coleslaw, bbq bwans,corn & French fries), 8.99 (4PM-11PM

Rotisserie Chicken

Terrible’s (Bougainvillea Café): ½ chicken, with salad, rice, beans, corn on the cob, 5.99, Not on Menu, Ask your Server. 

Breakfast

El Cortez: (Kitty’s Café) 3.95 (11PM-7AM) 
Rampart (Promenade Cafe): Early Risers Club, various breakfast specials for seniors, 1.99 (Mon-Fri, 5AM-8AM, excluding holidays)
JW Marriott LV Resort, Spa & Golf (Promenade Cafe): Deuces Wild, 2 eggs, 2 slices of bacon, 2 sausage, 2.21 (Midnight-5AM)  
JW Marriott LV Resort, Spa & Golf (Promenade Cafe): Jack Stack, 4 buttermilk pancakes, 2.21 (Midnight-5AM)  
Ellis Island: 2 scrambled eggs, Biscuits & gravy, bacon or sausage, 3.99  (11PM-6AM)
Arizona Charlie’s Boulder (Sourdough Café): ham steak and eggs, 3.29
Arizona Charlie’s Decatur (Sourdough Café): ham steak and eggs, 3.29
Arizona Charlie’s Decatur (Sourdough Café): 3 pancakes, 2 eggs, hash browns, 3.50
Wild Wild West: 2 eggs, bacon or sausage & 1 Pc toast, 1.49 (Midnight-11AM) 
Wildfire: 2 eggs, bacon or sausage & toast 1.49 (not available at Barley’s or The Greens)
Barley’s:  The Grand Silo, 3 eggs, 3 bacon or sausage, hash browns & toast 2.49 
Sunset Station (Sunset café): 3 eggs, ham, bacon or sausage, hash browns & a short stack of pancakes, 5.99
Boulder Station(Boulder Café):  3 eggs, ham, bacon or sausage, hash browns & a short stack of pancakes, 3.99 (24 Hrs)                                                                                                              
Orleans (Courtyard Café): 2 eggs, hash browns, bacon or sausage, 2.95 (Mon-Thu, Midnight-6AM)
Orleans (Courtyard Café): ham steak and eggs, 3.95 (Mon-Thu, Midnight-6AM)                                  
Steiner’s a Nevada Style Pub:  2 eggs, bacon or sausage, hash browns & choice of bread, 3.99  Texas Station (Texas Café):  Pancake Sandwich, 2.49                                                                          
Texas station (Texas Café):  3 eggs, hash browns & toast, 2.99 (Midnight-11AM)                          
Circus Circus (Casino Cafe):  Graveyard Special, 2 eggs, hash browns, toast, bacon or sausage & coffee, 4.99 (11PM-5AM, excluding holidays)                                                                                       
Golden Gate (Bay City Diner): Giant ham steak and eggs 3.99 (Midnight-6AM)   
 

Shrimp Cocktail Specials

Golden Gate (San Francisco Shrimp Bar & Deli):  Classis shrimp cocktail, 1.99 (.99 w/slot card)
Golden Gate (San Francisco Shrimp Bar & Deli):  The big shrimp cocktail, 3.99                               
Circus Circus (Westside Deli): Giant shrimp cocktail, 2.50 

Other Dinner Specials

Boulder Station (Pasta Palace):  Shrimp, Steak & Lobster, 19.99                                                                          
Boulder Station (Pasta Palace):  All you can ear pasta, salad & bread, 7.99 (4PM-9:30PM  
California (Aloha Specialties):  Chicken Super Bowl over rice, 2.85 (9AM-9PM Sun-Thu, 9AM-10PM Fri-Sat)                                                                                                                      
California (Aloha Specialties):  Chicken Tofu Saimin noodles, 4.75 (9AM-9PM Sun-Thu, 9AM-10PM Fri-Sat)                                                                                                                            
California (Aloha Specialties):  Loco Moco, (bowl of rice topped w/hamburger patty, fried egg & brown gravy), 4.75 (9AM-9PM Sun-Thu, 9AM-10PM Fri-Sat)                                                            
California (Aloha Specialties):  Large bowl Saimin noodles, 5.00 (9AM-9PM Sun-Thu, 9AM-10PM Fri-Sat)                                                                                                                                    
Tuscany (Marilyn’s Café):  Various Specials throughout the week, including steak, lobster, prime rib & chicken (no pricing available)                                                                                          
Rampart (Promenade Café):  Senior Specials (varies), 4.99 (Sun-Thu 3PM-5PM, excluding Holidays)                                                                                                                                                             Rampart (Promenade Café):  Monthly Dinner Specials (varied specials at various prices, check restaurant website), (11AM-10PM)                                                                                                         
Wildfire:  Spaghetti & Meatballs (includes soup or salad), 5.99 (available at all 3 Wildfire Casinos)                                                                                                                                                             Wild Wild West:  Spaghetti & Meatballs (includes soup or salad), 5.99                                                              
Arizona Charlie’s Decatur (Sourdough Café):  Great American Specials, selection varies daily 7.50 (11AM-10PM)                                                                                                                                    
Arizona Charlie’s Decatur (Sourdough Café):  All you can eat spaghetti w/soup or salad & breadsticks 4.99 (must have slot card)                                                                                                                        

Joker’s Wild (Court Café): varied specials at various prices, check restaurant website, (must have slot card, additional 1.00 off when paying with points)                                                                                
Binion’s (Coffee Shop): Blue Plate Special (varied daily specials) 7.99 (11AM – 10PM)

Cannery (Victory’s Café): Monthly Specials, varied tems at varied prices (11AM-11PM) 

Four Queens (Magnolia's) $7.98 chicken fried steak dinner w/potato, veggie (w/players club card), nightly

Drink Specials

The Plaza:  Well drinks, 2.50                                                                                                             
Fiesta:  Corona, 1.50                                                                                                                              
Joker’s Wild (Pigskin Snack & Sports Bar)  .99 draft beer all day
 

Buffets:  The below information was only partially updated, but will be fully updated by Sep 01, 2008.

Most Las Vegas hotel/casinos have buffets. The prices vary greatly as does the quality. Most have champagne brunches on the week-ends (some on both Saturday and Sunday, some Sunday only).
Gourmet-Quality (and are priced accordingly with lunch from about $15 to $20 dollars and dinner from the low $20's to over $30):
Bellagio
Paris
Wynn Las Vegas
Mirage
Treasure Island
Expensive
Rio (the Rio also has a separate seafood buffet that is only open for dinner and which is $34.99)

Plaza 777  Weekend Brunch Buffet -- $9.99 w-card    Food was good...No wait....Just realize the Plaza is one of the older casinos and not in a brand new building...The buffet area is appropriately called "Stuffed"...

Best Bargain

Green Valley Ranch (pricier than most, but very good quality); it’s particularly good for week-end brunchBally's Sterling Brunch - on Sundays the menu contains items such as champagne, sturgeon caviar, lobster, and freshly prepared sushi, along with the standards, such as omelets and beef tenderloin Orleans - although it has slipped a little recently Palace Station and Boulder Station  - a little behind the others, but in general, if a casino has Station in its name its buffet will be pretty good                                                                        
Vegas Club (Lucky 7’s):  7.77 all day (Brunch 6AM-4PM, Dinner 4PM-10PM)           
Terrible’s:  Theme Nights, varied menu themes nightly 9.99 every night except Seafood Night (Thu) 14.99 (4PM-9PM)