Baked Ostrich Burgers

Ingredients:
1lb. ground ostrich
1 tsp. dry mustard
1 tsp. salt
? tsp. Worcestershire
1/8 tsp.pepper
? cup chili sauce
6 lg. Onions sliced
2 cups cheddar cheese, cubed
1 can condensed cream of celery 3 Hamburger buns

Combine ground ostrich, salt and pepper, mixing well. Shape into six patties and place in baking dish. Top each patty with a slice of onion. Combine soup, mustard, Worcestershire sauce, chili sauce and cheese in a saucepan. Heat and stir until cheese is melted. Pour sauce over hamburgers in baking dish. Bake at 300° for 60 minutes. Serve each patty on a toasted, buttered bun half