Authentic Italian Sunday Gravy

Ingredients

• - 2 tbsp olive oil
• - 1 large onion, finely chopped
• - 4 cloves garlic, minced
• - 1 lb ground beef
• - 1 lb Italian sausage, casing removed
• - 1 cup red wine
• - 1 (28 oz) can crushed tomatoes
• - 1 (28 oz) can tomato puree
• - 2 fresh tomatoes, diced
• - 1/4 cup fresh basil, chopped
• - 1 tbsp dried oregano
• - 1 tsp salt
• - 1/2 tsp black pepper
• - 1/2 tsp red pepper flakes (optional)
• - 1/4 cup grated Parmesan cheese