Step 1: Prepare the Ingredients

• Chop the onion, slice the mushrooms, and cut the smoked sausage into thin slices.
• Finely mince the garlic and dice the tomatoes.

Step 2: Cook the Pasta

• Heat a large pot of salted water until it reaches a rolling boil.
• Add the pasta and cook it according to the package instructions until al dente.
• Drain the pasta and set it aside.

Step 3: Sauté the Onion and Mushrooms

• Heat 2 tablespoons of oil in a large skillet over medium heat.
• Add the chopped onion and sauté for 3-4 minutes, or until translucent.
• Add the mushrooms and cook for another 5 minutes, stirring occasionally, until they are golden brown and tender.

Step 4: Cook the Smoked Sausage

• Add the sliced smoked sausage to the skillet with the onions and mushrooms.
• Sauté for about 5 minutes, stirring occasionally, until the sausage is browned and slightly crispy around the edges.
• Stir in the minced garlic and cook for an additional 1-2 minutes until fragrant.

Step 5: Prepare the Sauce

• Add the diced tomatoes to the skillet and stir to combine. Simmer for 2-3 minutes, allowing the tomatoes to soften.
• Pour in the chicken broth and bring the mixture to a gentle simmer.
• Reduce the heat and stir in the heavy cream. Season the sauce with salt, black pepper, and oregano to taste. Let it simmer for 5 minutes until slightly thickened.

Step 6: Combine the Pasta with the Sauce

• Add the cooked pasta to the skillet. Toss it with the sausage and mushroom sauce until well coated.
• Sprinkle the grated cheddar cheese over the top and stir until the cheese is melted and evenly incorporated into the sauce.

Step 7: Garnish and Serve

• Garnish the dish with freshly chopped parsley, if desired.
• Serve the pasta warm and enjoy the comforting flavors!