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 Hot Italian Sausage Casserole?

You need 17 ingredients. The key ingredients include: 2 cups fingerling potatoes, partially boiled, skins on, coarsely chopped, 1 large pepper, sweet, yellow, coarsely chopped, 1 cup cherry tomatoes, halved, 1/2 cup portabella mushroom, diced, and more.

Is Hot Italian Sausage Casserole suitable as meat & poultry?

Yes, Hot Italian Sausage Casserole falls under the Meat & Poultry category and is a great choice for this type of meal.

How do I store leftover Hot Italian Sausage Casserole?

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

Hot Italian Sausage Casserole Recipe

Name: Hot Italian Sausage Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 2 cups fingerling potatoes, partially boiled, skins on, coarsely chopped; 1 large pepper, sweet, yellow, coarsely chopped; 1 cup cherry tomatoes, halved; 1/2 cup portabella mushroom, diced; 1 sweet onion, medium, sweet, coarsely chopped; 1 shallot, finely chopped 2 - 3 garlic cloves, chopped; 1 lb hot Italian sausage, thinly sliced; 1/2 teaspoon sea salt, freshly ground; 1/2 teaspoon black pepper, freshly ground; 1 cup swiss cheese, shredded; 1/2 cup cheddar cheese, shredded; 1 cup sour cream; 1/4 cup wine, white; 1/4 cup butter, melted; 2 tablespoons basil, fresh, finely sliced; 1/2 teaspoon oregano, fresh, finely chopped; 1/2 cup parmesan cheese, shredded

Try this homemade Hot Italian Sausage Casserole recipe the whole family will love. Made with fingerling potatoes, pepper, cherry tomatoes and portabella…

This Hot Italian Sausage Casserole relies on simple, everyday ingredients such as cherry tomatoes, halved, portabella mushroom, diced, sea salt, freshly ground and black pepper, freshly ground. It comes together quickly and makes 4 servings, at about 610 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 Meat & Poultry

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

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.
Coconut cream is a reliable plant-based alternative to dairy cream.

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

My Personal Notes

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Hot Italian Sausage Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

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Frequently Asked Questions