One-Pot Lasagna Potato Casserole – Easy

Chef Emma grew up loving anything “dump-and-go,” and this one-pot lasagna potato casserole is her favorite comfort food with a twist. With hearty potatoes, rich tomato sauce, and layers of cheese, this slow cooker meal nurtures busy families and reminds everyone that delicious flavors don’t require a ton of effort.

Just layer, set, and savor—the slow cooker brings out deep, cheesy lasagna goodness without the fuss of boiling noodles or keeping watch over the stove.

One-Pot Lasagna Potato Casserole – Easy

Dump-and-go lasagna potato casserole layered with tomato sauce and cheese—slow cooker comfort food with all the classic flavors.

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Ingredients Equipment Method Notes

Ingredients

  

• – 2 lbs russet potatoes peeled and thinly sliced
• – 1 24-oz jar marinara or pasta sauce
• – 2 cups shredded mozzarella cheese
• – 1 cup ricotta or cottage cheese
• – 1/2 cup grated Parmesan cheese
• – 1 lb cooked ground beef sausage, or mushrooms (optional)
• – 1 medium onion diced
• – 2 garlic cloves minced
• – 2 teaspoons Italian seasoning
• – Salt and pepper to taste
• – Nonstick spray

Equipment

• Slow cooker or large casserole dish, spatula, mixing bowl

Method

 

1. Coat inside of slow cooker or casserole dish with nonstick spray.
2. Layer half the potato slices on bottom, overlapping slightly. Season lightly with salt and pepper.
3. Add half the onion, garlic, cooked protein (if using), and Italian seasoning.
4. Spoon half the pasta sauce over potatoes. Dab half ricotta (or cottage cheese) and half mozzarella on top.
5. Add remaining potatoes, onion, garlic, reserved protein, and sauce. Top with remaining ricotta, mozzarella, and all Parmesan cheese.
6. Cover and cook on LOW 4–5 hours (slow cooker) or bake at 375°F 55–60 minutes (oven) until potatoes are tender and cheese is melted.
7. Let cool 10 minutes before serving for firmer slices.

Notes

Substitute sweet potatoes for russet for a unique twist. For vegetarian, omit meat and add spinach.

Calories: 420 per serving

Nutrition Facts in One-Pot Lasagna Potato Casserole

Tips and Variations

• Switch ricotta for cottage cheese for extra protein.​
• Add ground beef, turkey, or mushrooms for more texture.
• Spice it up with red pepper flakes or Italian sausage.
• Make ahead for potlucks—leftovers reheat perfectly.

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