Ingredients:
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1 lb ground beef
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1/2 cup diced onion
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1/2 cup diced green bell pepper
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1 cup shredded cheddar cheese
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1 cup shredded mozzarella cheese
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1/2 cup mayonnaise
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1/2 cup heavy cream
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2 large eggs
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1 tsp garlic powder
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1 tsp salt
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1/2 tsp black pepper
Instructions:
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Preheat oven to 375°F (190°C).
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In a large skillet, cook ground beef, onion, and green pepper over medium heat until meat is browned. Drain any excess fat.
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In a large bowl, whisk together mayonnaise, heavy cream, eggs, garlic powder, salt, and pepper.
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Add the cooked beef mixture to the bowl and mix well.
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Transfer the mixture to a 9×13 inch baking dish and sprinkle the cheddar cheese and mozzarella cheese on top.
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Bake for 25-30 minutes, or until the cheese is melted and the casserole is set.
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Serve hot and enjoy!
Note: Feel free to add any other ingredients you like, such as mushrooms, bacon, or diced tomatoes.