What to cook when you want to go all out

Name: What to cook when you want to go all out
Ingredients: butter or nonstick spray, for sauteing; 2 celery ribs, chopped fine; 1 medium bell pepper, chopped fine; 1 medium onion, chopped fine; 6 cup evaporated milk; 3 cup chicken or shrimp stock; 2 to 3 tablespoons flour paste (see notes); salt to taste; few drops yellow food coloring (optional); 1 tablespoon chopped pimento; 1/4 cup real sherry (not cooking sherry); 1 pound claw crab meat; grated sharp cheddar cheese, as needed for garnish; pimento strips, for garnish