Can someone please modify this recipe so it's healthier?

Spaghetti Bolognese * 1 tablespoon Oil * 1 Onion * 100g beef mince * 0.5 cup tomato paste * 2 tomatoes * 2 tablespoons basil * 0.5 teaspoon ground pepper * 0.5 cup red wine * 0.5 cup water * 50g spaghetti