Barilla US on Instagram: "For a back-to-school dish that's easy and fulfilling, try @mistergoodmoodfood's One-Pot Mediterranean Beef Marinara Ditalini. (Watch until the end for the secret ingredient.) INGREDIENTS 1 box Barilla Ditalini Pasta 2 tbsp olive oil 1 cup onion, diced 3 tablespoons tomato paste 3 cloves garlic, minced 1 lb ground beef Salt and pepper, to taste 1 tsp Italian seasoning, plus extra for garnish 1 can (28 oz) tomato purée 4 cups water (to cover all ingredients) 1 tbsp (or cu