Sausage Potato Casserole Recipe – Easy & Cheesy One-Pan Meal

1. Prepping the Ingredients

1. Wash and Peel the Potatoes
2. Rinse the potatoes under running water to remove dirt.
3. Peel them using a vegetable peeler.
4. Slice them thinly (about ¼-inch thick) to ensure even cooking.
5. Chop the Vegetables
6. Dice the onion into small, even pieces.
7. Remove the seeds from the red bell pepper and cut it into small cubes.
8. Prepare the Sausage
9. If using link sausage, slice it into bite-sized pieces.
10. If using ground sausage, break it up into smaller crumbles.

2. Cooking the Sausage

1. Heat the Pan
2. Place a large skillet over medium heat and add 1 tablespoon of olive oil.
3. Cook the Sausage
4. Add the sliced or crumbled sausage to the pan.
5. Cook for 5-7 minutes, stirring occasionally, until it turns golden brown.
6. Remove the sausage from the pan and place it on a plate lined with a paper towel.

3. Sautéing the Vegetables

1. Add Butter to the Pan
2. In the same skillet, add 1 tablespoon of butter and let it melt.
3. Cook the Onion and Bell Pepper
4. Add the diced onions and bell peppers.
5. Sauté for 3-4 minutes, stirring occasionally, until they soften.
6. Season the Vegetables
7. Sprinkle ½ teaspoon garlic powder, ½ teaspoon onion powder, ½ teaspoon paprika, and ½ teaspoon dried thyme over the vegetables.
8. Stir well to coat everything with the seasoning.

4. Preparing the Sauce

1. Mix the Ingredients
2. In a medium-sized mixing bowl, combine:
3. 1 can (10.5 oz) cream of mushroom soup
4. ½ cup whole milk
5. Whisk the mixture until smooth and lump-free.

5. Assembling the Casserole

1. Preheat the Oven
2. Set your oven to 190°C (375°F) and let it fully preheat.
3. Grease the Baking Dish
4. Lightly coat a 9x13-inch baking dish with butter or non-stick spray.
5. Layering the Casserole
6. First Layer:
7. Arrange half of the sliced potatoes evenly at the bottom of the baking dish.
8. Add half of the cooked sausage and half of the sautéed vegetables.
9. Sprinkle ½ cup of cheddar cheese and ¼ cup of pepper jack cheese.
10. Second Layer:
11. Repeat the process with the remaining potatoes, sausage, and vegetables.
12. Pour the prepared sauce evenly over the layers.
13. Top with the remaining ½ cup of cheddar cheese and ¼ cup of pepper jack cheese.

6. Baking the Casserole

1. Cover and Bake
2. Cover the baking dish with aluminum foil to trap moisture.
3. Place the dish in the preheated oven.
4. Bake for 30 minutes.
5. Uncover and Continue Baking
6. Remove the foil to allow the cheese to brown.
7. Bake uncovered for 15 more minutes or until the potatoes are tender and the top is golden brown.

7. Resting and Serving

1. Let It Rest
2. Remove the casserole from the oven and let it sit for 10 minutes before serving.
3. This helps the flavors settle and makes slicing easier.
4. Garnish
5. Sprinkle chopped fresh parsley or sliced green onions on top for added freshness.
6. Serve and Enjoy
7. Serve warm as a main dish or alongside a fresh salad.