Preheat oven to 350. Precook bacon in conventional oven or microwave. When cooked, crumble bacon and set aside as toppings. In a large skillet, brown ground beef and drain remaining fat. Mix in egg, cheddar, garlic power, salt and pepper to taste. Transfer to a glass casserole dish and top with mozzarella. Bake for 30-35 minutes. Top with bacon crumbles.