Remove the casing from the hot Italian sausage and crumble it into a skillet over medium heat. Cook until no pink remains, about 5–7 minutes. Drain, keeping 2 tablespoons of the grease for flavor.

In the same skillet, add the reserved grease and heat it over medium. Add the chopped onion and minced garlic, sautéing until the onions are translucent, roughly 3–4 minutes.

Stir in the petite diced tomatoes, oregano, basil, salt, and pepper. Let this simmer for about 5 minutes, allowing those amazing flavors to meld together.

Add the cooked sausage back into the sauce; bring to a gentle boil, then reduce heat and let it simmer for 30 minutes, letting the flavors develop further.

While the sauce is simmering, bring a pot of salted water to a boil and cook the farfalle pasta until al dente, following package instructions. Drain and set aside.

Combine the sausage and tomato sauce with the drained pasta, stirring to coat everything evenly. Mix in the shredded mozzarella cheese until perfectly incorporated and melted.

Enjoy your delicious Italian Sausage Bow Tie Pasta hot, or consider serving it with a fresh side salad or warm garlic bread for a complete meal.