Tired of boring, mass-produced sandwiches and burgers? Do you long for a lovingly prepared, triple-decker masterpiece? Listed below is a sampling of restaurants that offer just that. Sandwich price ranges and specialties are noted.

AE (American Express), DC (Diners Club), CB (Carte Blanche), MC (MasterCard), V (Visa), C (Choice). "Free parking" indicates the establishment has a parking lot; otherwise, expect street parking or commercial lots. "Full bar" indicates a license to sell liquor, beer and wine. "Children" indicates a children's menu with reduced-price entrees.

American Cafe, 1211 Wisconsin Ave. NW, 13th and F streets NW (at The National Center) and 277 Massachusetts Ave. NE. Tels.: 337-3606, 547-8200 and 737-5153. At Wisconsin Avenue: Hours: Mon.-Thurs. 11 a.m. to 3 a.m.; Fri.-Sat. 11 a.m. to 4 a.m.; Sun. 10:30 a.m. to 3 a.m. Cards: AE, DC, MC, V. Street and commercial parking. Full bar. Children accommodated. Price range: $4.95 to $6.95. Specialties: The American Cafe (rare roast beef on a croissant), The Eiffel Tower (rare roast beef and pate on a croissant) and chicken tarragon (chicken salad). Times and specialties vary slightly at the other locations.

The Bread Oven, 1201 Pennsylvania Ave. NW. Tel.: 466-4264. Hours: Restaurant section, Mon.-Fri. 11:30 a.m. to 3 p.m.; Mon.-Wed. 5:30 p.m. to 10 p.m.; Thurs.-Sat. 5:30 p.m. to midnight. Closed Sun. Retail section, 8 a.m. to 8 p.m.; Sat. 8 a.m. to 4 p.m. Closed Sun. Cards: AE, DC, CB, MC, V. Street and commercial parking. Full bar. Price range: $1.75 to $3 for sandwiches, $5.95 for a burger platter. Specialties: country pate sandwich, hamburger seasoned with spices and shallots, served with melted brie. A cabaret is performed Thurs.-Sat. evenings at 8:30.

The Brickskeller Dining House and Down-Home Saloon, 1523 22nd St. NW. Tel.: 293-1885. Hours: Mon.-Thurs. 11:30 a.m. to 2 a.m.; Fri. 11:30 a.m. to 3 a.m.; Sat. 6 p.m. to 3 a.m.; Sun. 6 p.m. to 2 a.m. Cards: AE, DC, CB, MC, V, C. Street and commercial parking. Full bar. Price range: $3 to $5. Specialties: buffalo burgers (with real buffalo meat), brick burger (ground beef with bacon, salami, onion, coleslaw, sharp cheese, tomato, lettuce and a pickle), brotzeit (German sausage links simmered in beer and served on a large roll) and a brick steak and provolone cheese sandwich.

C. F. Folks, 1225 19th St. NW. Tel.: 293-0162. Hours: 11:45 a.m. to 3 p.m. (lunch only). Cards: None. Street and commercial parking. No bar. Price range: $3.25 to $6.50. Specialties: oyster poor boys, steak sandwich, pastrami, corned beef, breast of chicken salad and homemade soups.

Chadwick's, 3205 K St. NW and 5247 Wisconsin Ave. NW. Tels.: 333-2565 and 362-8040. Hours: Mon.-Thurs. 11:30 a.m. to midnight; Fri.-Sat. 11:30 a.m. to 1 a.m.; Sun. brunch 11 a.m. to 4 p.m. and dinner 5 p.m. to midnight. Bar is open later. Cards: AE, MC, V. Street and commercial parking. Children. Price range: $4.50 to $5. Specialties: cheese and bacon burger, crab cakes, turkey waldorf and an American dip (roast beef).

G. Pinchot's, 17th Street and Rhode Island Avenue NW. Tel.: 293-6811. Hours: Mon.-Fri. 7 a.m. to 10:30 a.m., 11:30 a.m. to 2:30 p.m. and 5:30 p.m. to 10 p.m.; Sat.-Sun. 8 a.m. to 10:30 a.m., same hours for lunch and dinner as during the week. Cards: AE, DC, CB, MC, V, C. Street and commercial parking. Full bar. Price range: burgers $4.50 to $4.95, sandwiches $5.50 to $5.90. Specialties: breast of chicken on rye (open-faced sandwich served with bacon, chopped egg, swiss cheese, shredded lettuce and remoula de sauce), charcoal-grilled burgers. Features a burger of the day.

Hamburger Hamlet, 5225 Wisconsin Ave. NW and 3125 M St. NW. Tels.: 244-2037 and 965-6970. Hours: Mon.-Thurs. 11:30 a.m. to 11 p.m.; Fri.-Sat. 11:30 a.m. to midnight; Sun. 11:30 a.m. to 10 p.m. Cards: AE, DC, CB, MC, V. Street and commercial parking. Full bar. Price range: burgers $4.50 to $4.95, sandwiches $2.95 to $5.95. Specialties: No. 11, The Greatest Hamburger (ground beef with cheese, bacon and Russian dressing); No. 17, Emperor Henry IV (consists of ground beef, cheese, ham, tomato, bacon and thousand island dressing), fried oyster loaf in pita bread, sunflower sandwich and foot-long hot dog.

Subway Foot-Long Sandwiches, 2016 Georgia Ave. NW. Tel.: 483-7824. Hours: Mon.-Sat. 11 a.m. to midnight; Sun. 11 a.m. to 10 p.m. Cards: None. Cash and travelers checks only. Free parking (across the street at Howard University Hospital). No bar. Price range: $2.50 to $7, $60 for six-foot party subs (two days' advance notice required). Specialties: The BMT (Biggest, Meatiest, Tastiest, which is a cold-cut sandwich), King Crab sub (crabmeat), steak and cheese and tuna subs.