Comfort food doesn’t get more inviting than this Crockpot Sausage Casserole. Brimming with hearty chunks of potato, tender carrots, and golden-browned sausages, it’s all enveloped in a rich tomato-based sauce infused with garlic, herbs, and slow-cooked flavor. Whether you’re cozying up on a rainy day or need a no-fuss family meal, this recipe delivers warmth in every spoonful.

What makes this casserole special is its simplicity: throw everything in the crockpot and walk away. Hours later, you’re welcomed by a kitchen filled with savory aroma and a dish that tastes like it simmered all day on the stovetop. It’s budget-friendly, nourishing, and satisfies both kids and adults alike.

What Kind of Sausages Should I Use?

The beauty of this dish is how versatile the sausage choice can be. Go for classic pork sausages for traditional richness, or try chicken or turkey sausages for a leaner twist. Want extra depth? Smoked sausage or kielbasa adds a bold, smoky note that blends beautifully with the sweet vegetables and herbed tomato base.

Ingredients for the Crockpot Sausage Casserole

Sausages: The star of the show! Choose your favorite variety, and brown them first for added flavor and texture.
Potatoes: Diced yellow or white potatoes create the hearty base and soak up the sauce.
Carrots: They add sweetness and color, becoming melt-in-your-mouth soft.
Onion: Brings a savory backbone to the dish when slow-cooked.
Garlic: Essential for depth and aromatic flair.
Canned chopped tomatoes: They create the saucy foundation.
Tomato paste: Enhances the richness of the sauce.
Beef or vegetable broth: Adds moisture and helps everything cook evenly.
Dried herbs (thyme, rosemary, oregano): For that comforting, earthy seasoning.
Salt and pepper: To balance and enhance all the flavors.
Olive oil: For sautéing and bringing everything together.

How To Make the Crockpot Sausage Casserole

Step 1: Sear the Sausages

Heat olive oil in a skillet over medium heat. Brown the sausages on all sides until they develop a golden crust. This helps seal in flavor and gives the casserole extra texture.

Step 2: Prepare the Veggies

While the sausages brown, chop the potatoes, carrots, and onion into bite-sized chunks. Mince the garlic. Layer them into the bottom of your crockpot.

Step 3: Make the Sauce

In a bowl, mix the canned chopped tomatoes, tomato paste, broth, herbs, salt, and pepper. Stir until well combined. This will be the rich base that everything simmers in.

Step 4: Combine and Cook

Add the browned sausages on top of the vegetables. Pour the tomato mixture over everything. Cover and cook on LOW for 6-8 hours or HIGH for 3-4 hours, until the potatoes are tender and the sausages are cooked through.

Step 5: Serve and Garnish

Give the casserole a gentle stir and serve hot, garnished with fresh herbs like parsley or thyme if desired.

How to Serve and Store Crockpot Sausage Casserole

This casserole is perfect as-is, but it also pairs beautifully with a crusty loaf of bread, steamed green beans, or even creamy mashed potatoes for double comfort.

Leftovers keep well in the refrigerator for up to 4 days in an airtight container. Reheat in the microwave or on the stovetop. You can also freeze portions for up to 3 months—just defrost overnight in the fridge and warm through before serving.

Frequently Asked Questions

Can I use frozen sausages?

Yes, but thaw them first and brown them before adding to the crockpot for the best flavor.

Can I make it vegetarian?

Absolutely! Swap sausages for a plant-based variety and use vegetable broth. Add extra mushrooms or beans for more texture.

Do I have to brown the sausages first?

It’s not required, but it adds great flavor and helps prevent sogginess.

Can I add other vegetables?

Definitely. Bell peppers, mushrooms, or parsnips make great additions.

What if I don’t have tomato paste?

You can substitute with a little ketchup or simply increase the amount of canned tomatoes slightly.

Want More Dinner Ideas?

If you love this comforting Crockpot Sausage Casserole, you’ll probably enjoy these other hearty favorites:

Creamy Parmesan Pasta with Sauteed Garlic Butter Chicken for indulgent pasta nights.
Low Carb Greek Chicken Bowls if you’re aiming for something lighter.
Honey Garlic Ribs for finger-licking flavor.
Ultimate Cheesy Ground Beef Melt for quick, satisfying weeknight dinners.
Classic Chicken with Buttered Noodles for something every family member will love.

Save This Pin + Share Your Results

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And let me know in the comments how yours turned out. Did you add bell peppers or spice it up with chili flakes? Did you serve it with rice or crusty bread?

I love hearing how others make these recipes their own. Questions are welcome too—let’s help each other cook smarter and cozier!