Ingredients

• 1/2 pound ground beef 1/2 cup chopped onion 1/2 teaspoon salt
• 1/2 teaspoon dried oregano 1/2 teaspoon garlic powder 1/4 teaspoon pepper
• 3 eggs
• 1/2 cup milk
• 1/2 cup mayonnaise
• 1 cup shredded cheddar cheese 1 cup shredded swiss cheese
• 1 (9 inch) unbaked pastry shell