1 lb. ground beef
1/2 c. fine bread crumbs
2/3 c. evaporated milk
1 tsp. garlic
1/3 c. ketchup
1 c. Cheddar cheese
1 (20 oz.) can mushrooms
1/4 tsp. oregano
2 tbsp. Parmesan cheese

Mix first 4 ingredients and pat into 8 inch pie plate. Add rest in order given. Bake at 375 degrees for 25 minutes.