Stovetop spinach dip mac and cheese Ingredients 3 tablespoons unsalted butter 1/2 medium onion, diced 3 cloves garlic, minced 1/3 cup all-purpose flour 2 cups 2 percent milk 2 cups light cream 12 ounces whole wheat macaroni noodles 22 ounces fresh spinach, chopped 1 cup shredded mozzarella 1 cup grated Champagne white cheddar cheese