9" unbaked pie shell
1/2 lb. ground beef
1/3 c. chopped onion
1/2 c. mayonnaise
1/2 c. milk
3 eggs, beaten
1 1/2 c. grated Cheddar cheese
1/2 tsp. salt
1/8 tsp. pepper
1/8 tsp. ground oregano

Brown ground beef and onion. Drain. In bowl beat milk, mayonnaise and seasonings. Stir in eggs. Add 1 cup cheese and ground beef. Bake at 350 degrees for 35-40 minutes. Add rest of cheese last 5 minutes.