How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Slow Simmered Spaghetti Sauce?

You need 20 ingredients. The key ingredients include: 2 lbs hot Italian sausage, 1 yellow bell pepper, chopped, 1 orange bell pepper, chopped, 6 garlic cloves, nicnced, and more.

Is Slow Simmered Spaghetti Sauce suitable as pasta & noodles?

Yes, Slow Simmered Spaghetti Sauce falls under the Pasta & Noodles category and is a great choice for this type of meal.

How do I store leftover Slow Simmered Spaghetti Sauce?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Slow Simmered Spaghetti Sauce Recipe

Name: Slow Simmered Spaghetti Sauce
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 2 lbs hot Italian sausage; 1 yellow bell pepper, chopped; 1 orange bell pepper, chopped; 6 garlic cloves, nicnced; 2 onions, chopped; 3 stalks celery, chopped; 8 ounces sliced baby portabella mushrooms; 1 (15 ounce) can tomato sauce; 2 (14 1/2 ounce) cans diced tomatoes; 2 (6 ounce) cans tomato paste; 3 beef bouillon cubes; 3 bay leaves; 1 tablespoon dried thyme; 1 1/2 tablespoons dried oregano; 1/4 cup fresh basil; 1/2 teaspoon crushed red pepper flakes; 1 teaspoon ground black pepper; 1 tablespoon white sugar; 1 cup beef broth; 1 cup red wine

Try this homemade Slow Simmered Spaghetti Sauce recipe the whole family will love. Made with sausage, yellow bell pepper, orange bell pepper and garlic.…

This Slow Simmered Spaghetti Sauce relies on simple, everyday ingredients such as hot italian sausage, yellow bell pepper, chopped, orange bell pepper, chopped and garlic cloves, nicnced. It comes together quickly and makes 4 servings, at about 534 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 Pasta & Noodles

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Brown sugar instead of white sugar adds a deeper, more caramel-like flavor.

No specific allergen information. Please check the ingredient list for possible allergens.

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Slow Simmered Spaghetti Sauce

Tips for the best results

Variations & substitutions

My Personal Notes

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Frequently Asked Questions