Crockpot Sausage Casserole is the ultimate comfort food, a flavor-packed one-pot meal that’s incredibly easy to whip up. This recipe is perfect for busy weeknights or when you crave a hearty, satisfying dish without the fuss.
Key Ingredients for Crockpot Sausage Casserole
- 1 pound fully cooked smoked sausage (like kielbasa or andouille), sliced into ½-inch rounds
- 1 pound Italian sausage (mild or spicy, your preference), removed from casings
- 1 large onion, chopped
- 2 cloves garlic, minced
- 1 (10.5 ounce) can condensed cream of mushroom soup
- 1/2 cup milk
- 1 (15 ounce) can diced tomatoes, undrained
- 1 cup frozen peas
- 1 teaspoon dried Italian seasoning
- Salt and freshly ground black pepper to taste
- 1 cup shredded cheddar cheese (optional, for topping)
- Fresh parsley, chopped (optional, for garnish)
How to Make Crockpot Sausage Casserole
This Crockpot Sausage Casserole is a true game-changer, offering a delicious and incredibly satisfying meal with minimal effort. Its simplicity lies in the slow cooker’s magic, infusing every bite with rich, comforting flavors. Expect a creamy, hearty texture that’s perfect for any occasion. The estimated active preparation time is only about 15 minutes, making it a weeknight winner.
Step-by-Step Instructions
- Prepare the Sausages: In your slow cooker, add the sliced fully cooked smoked sausage. Then, add the Italian sausage, breaking it up into smaller pieces as you add it to the pot.
- Add Aromatics: Sprinkle the chopped onion and minced garlic over the sausages in the slow cooker.
- Combine the Creamy Base: In a separate medium bowl, whisk together the condensed cream of mushroom soup and milk until smooth. Pour this mixture evenly over the sausage and onion mixture in the slow cooker.
- Incorporate Tomatoes and Seasoning: Add the undrained can of diced tomatoes to the slow cooker. Stir in the dried Italian seasoning, salt, and freshly ground black pepper.
- Cook on Low: Cover the slow cooker and cook on LOW for 6–8 hours, or on HIGH for 3–4 hours. The sausages should be heated through and the flavors melded together beautifully.
- Add Peas: About 30 minutes before serving, stir in the frozen peas. This allows them to heat through without becoming mushy.
- Serve: Once cooked, stir the casserole gently. If desired, top with shredded cheddar cheese and allow it to melt before serving, or serve the cheese on the side. Garnish with fresh parsley, if using, and serve hot.
Why You’ll Love This Crockpot Sausage Casserole
You’ll absolutely fall in love with this Crockpot Sausage Casserole for its unbelievably comforting and savory profile. The combination of smoky sausage and the creamy, rich sauce makes it a hug in a bowl, far superior to a basic baked ziti. Plus, making it at home saves you a significant amount compared to dining out or ordering takeout. The melt-in-your-mouth texture and the savory depth of flavor, especially with the optional touch of sharp cheddar cheese, are simply irresistible.
This casserole is proof that delicious, hearty meals don’t require hours slaving away in the kitchen. It’s the perfect solution for busy families or anyone seeking a satisfying and budget-friendly supper that feels utterly special. Don’t wait to experience the pure joy of this easy Crockpot Sausage Casserole – give it a try this week and make your taste buds sing!
Storing and Reheating Tips
- Refrigeration: Allow the Crockpot Sausage Casserole to cool completely before storing. Transfer any leftovers to an airtight container and refrigerate. It will stay fresh in the refrigerator for 3–4 days.
- Freezing: For longer storage, let the casserole cool completely, then place it in a freezer-safe airtight container or heavy-duty freezer bag. You can freeze the entire casserole or individual portions. Properly frozen, it will maintain its quality for up to 2–3 months.
- Reheating: To reheat from the refrigerator, spoon portions into a microwave-safe dish and heat on medium power until warmed through, stirring halfway. Alternatively, you can reheat it gently in a saucepan over low heat on the stovetop. If reheating from frozen, it’s best to thaw it in the refrigerator overnight before reheating using one of the above methods. You can also reheat directly from frozen in a 350°F (175°C) oven for about 30–40 minutes, covered, until heated through.
Final Thoughts
This Crockpot Sausage Casserole is the epitome of easy, hearty, and delicious comfort food. Encourage everyone to give this simple, flavorful recipe a try for a guaranteed crowd-pleaser. You won’t be disappointed with this delightful meal.

Crockpot Sausage Casserole
Ingredients
Equipment
Method
- In your slow cooker, add the sliced fully cooked smoked sausage. Then, add the Italian sausage, breaking it up into smaller pieces as you add it to the pot.1 pound fully cooked smoked sausage, 1 pound Italian sausage
- Sprinkle the chopped onion and minced garlic over the sausages in the slow cooker.1 large onion, 2 cloves garlic
- In a separate medium bowl, whisk together the condensed cream of mushroom soup and milk until smooth. Pour this mixture evenly over the sausage and onion mixture in the slow cooker.1 (10.5 ounce) can condensed cream of mushroom soup, 1/2 cup milk
- Add the undrained can of diced tomatoes to the slow cooker. Stir in the dried Italian seasoning, salt, and freshly ground black pepper.1 (15 ounce) can diced tomatoes, 1 teaspoon dried Italian seasoning, salt, freshly ground black pepper
- Cover the slow cooker and cook on LOW for 6–8 hours, or on HIGH for 3–4 hours. The sausages should be heated through and the flavors melded together beautifully.
- About 30 minutes before serving, stir in the frozen peas. This allows them to heat through without becoming mushy.1 cup frozen peas
- Once cooked, stir the casserole gently. If desired, top with shredded cheddar cheese and allow it to melt before serving, or serve the cheese on the side. Garnish with fresh parsley, if using, and serve hot.1 cup shredded cheddar cheese, Fresh parsley