Colossal Cheeseburger

Ingredients

• 1 loaf French bread
• 1 lb. ground meat
• 1 can tomato sauce with mushrooms
• 1 egg (slightly beaten)
• 1 onion chopped
• 1-1/2 c. cubed cheddar cheese
• 1 tsp. salt
• 1/2 tsp. thyme
• 1/4 tsp. pepper
• 1 c. bread crumbs (from French bread)
• 1/2 c. chopped celery