"Meatball Sub Grilled Cheese Casserole is an easy casserole recipe made with Italian style meatballs, marinara sauce and loaded with cheese all sandwiched between layers of garlic toast...."
INGREDIENTS
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24 oz marinara sauce
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1 lb 8 oz frozen Italian style meatballs
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12 slices bread
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1/2 cup garlic margarine or butter
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4 cups shredded mozzarella and cheddar cheese blend