Looking for an easy, delicious, and satisfying meal that can be made in one pan? This Sausage, Green Bean, and Potato Casserole recipe is the perfect solution! It's a hearty dish made with smoky sausage, tender green beans, and perfectly roasted potatoes, all tossed in flavorful seasonings and baked to perfection. Whether you need a comforting weeknight meal or a crowd-pleasing dish for a potluck, this casserole is sure to become a family favorite. Stick around to learn how to make this easy recipe, with tips and variations to suit your taste!

What is Sausage, Green Bean, and Potato Casserole?

The Sausage, Green Bean, and Potato Casserole is a one-pan dish that combines savory smoked sausage, tender green beans, and crispy roasted potatoes. All the ingredients are tossed together in olive oil, garlic, and seasonings, then baked until everything is perfectly golden and flavorful. This casserole is simple to make, budget-friendly, and packed with flavor. It’s a perfect option for a quick dinner or meal prep, as it reheats beautifully.

Ingredients List for Sausage, Green Bean, and Potato Casserole

Here’s what you’ll need to make this delicious and comforting casserole:

Smoked sausage (1 lb, sliced into rounds): Kielbasa, andouille, or any smoked sausage of your choice will work.
Red potatoes (1 ½ lbs, quartered): You can also use Yukon Gold or Russet potatoes, but red potatoes hold up well and roast beautifully.
Fresh green beans (1 lb, trimmed): You can use frozen green beans if you don’t have fresh, but fresh beans provide better texture.
Olive oil (3 tbsp): For tossing the ingredients before roasting.
Garlic (3 cloves, minced): Adds a depth of flavor.
Onion (1 medium, diced): Adds sweetness and enhances the flavor.
Smoked paprika (1 tsp): Adds a smoky, slightly spicy flavor.
Italian seasoning (1 tsp): A blend of herbs to enhance the overall flavor.
Salt and pepper (to taste): For seasoning.
Butter (2 tbsp, melted): Optional, adds richness to the casserole.
Grated parmesan cheese (¼ cup, optional): For a cheesy topping.

Optional add-ins:

Bell peppers: Add some color and extra flavor by slicing bell peppers into the mix.
Hot sauce or red pepper flakes: For a little heat.

Substitutions and Variations

This casserole is incredibly versatile. Here are some ways to make it your own:

Sausage Alternatives: You can use any type of sausage you like—pork sausage, chicken sausage, or even turkey sausage will work. Spicy andouille or Italian sausage adds a nice kick.
Potato Substitutes: Feel free to swap red potatoes with sweet potatoes for a slightly sweeter and more nutrient-dense dish.
Cheesy Addition: Sprinkle shredded cheddar or mozzarella cheese over the casserole for extra creaminess.
Vegetarian Version: Swap out the sausage for a plant-based sausage alternative or even roasted tofu or tempeh.

Step-by-Step Cooking Instructions

Follow these simple steps to create the perfect Sausage, Green Bean, and Potato Casserole:

Step 1: Preheat the Oven

Preheat your oven to 400°F (200°C). Grease a large 9x13-inch baking dish or line a sheet pan with parchment paper for easy cleanup.

Step 2: Prep the Potatoes

In a large mixing bowl, toss the quartered potatoes with 2 tablespoons of olive oil, minced garlic, smoked paprika, Italian seasoning, salt, and pepper. Spread the seasoned potatoes evenly in the prepared baking dish or on a sheet pan. Roast in the preheated oven for about 20 minutes, stirring halfway through, until they start to become tender and lightly browned.

Step 3: Cook the Sausage and Green Beans

While the potatoes are roasting, slice the smoked sausage into ¼-inch rounds. Trim the ends of the green beans, and if they’re long, cut them in half. Toss the sausage slices, green beans, and diced onions in the remaining 1 tablespoon of olive oil, season with a little salt and pepper, and set aside.

Step 4: Combine the Ingredients

Once the potatoes are halfway cooked (after about 20 minutes), remove the pan from the oven. Add the sausage, green beans, and onions to the pan, spreading them evenly among the potatoes. Drizzle the melted butter over the top for extra richness if desired. Toss everything together to ensure the ingredients are evenly distributed.

Step 5: Bake Until Golden and Crispy

Return the casserole to the oven and bake for another 20-25 minutes, or until the potatoes are golden and crispy, the green beans are tender, and the sausage is cooked through. Stir once or twice during baking to ensure even cooking.

Step 6: Add the Final Touches

Once the casserole is done, remove it from the oven and sprinkle with grated parmesan cheese if desired. Let the casserole rest for 5 minutes before serving to allow the flavors to meld.

Step 7: Serve and Enjoy

Serve your Sausage, Green Bean, and Potato Casserole hot from the oven. Garnish with fresh parsley or extra parmesan for an added touch. This dish is great on its own or served with crusty bread on the side.

How to Cook Sausage, Green Bean, and Potato Casserole: A Step-by-Step Guide

The key to making a perfect Sausage, Green Bean, and Potato Casserole is roasting the ingredients in stages. Start by roasting the potatoes first to ensure they get crispy and tender before adding the sausage and green beans. The sausage and green beans don’t need as much cooking time, so adding them later prevents overcooking. Stirring the casserole halfway through baking helps distribute the flavors evenly and ensures the potatoes get that beautiful golden-brown crust.

If you want to add extra richness, drizzle melted butter over the top, and for a cheesy twist, sprinkle with parmesan cheese in the last few minutes of baking.

Common Mistakes to Avoid

Overcrowding the Pan: Make sure to spread out the ingredients in a single layer on the baking dish or sheet pan. Overcrowding will cause the ingredients to steam rather than roast, resulting in soggy potatoes and limp green beans.
Underseasoning: Since potatoes and green beans can be bland on their own, be generous with your seasonings. Don’t forget to taste and adjust salt and pepper as needed.
Overcooking the Green Beans: Fresh green beans need less time to cook than the potatoes, so be careful not to add them too early. This will keep them tender-crisp and vibrant.

Serving and Presentation Tips

While this casserole is hearty enough to be served on its own, it pairs wonderfully with a variety of side dishes and garnishes.

How to Serve Sausage, Green Bean, and Potato Casserole

On Its Own: This casserole is a complete meal with protein, veggies, and starch all in one dish. Serve it directly from the baking dish for a family-style meal.
With Bread: Pair this casserole with warm, crusty bread or garlic bread to soak up any juices.
With a Side Salad: For a lighter touch, serve this casserole alongside a fresh green salad or coleslaw to balance out the richness.

Presentation Ideas for Sausage, Green Bean, and Potato Casserole

Cast Iron Skillet: Serve the casserole straight from the oven in a cast iron skillet for a rustic, homestyle presentation.
Garnish: Add a sprinkle of fresh parsley or a drizzle of balsamic glaze for a colorful and flavorful garnish.
Cheese: If you’re adding parmesan cheese, serve the casserole with a small dish of extra cheese on the side for guests to sprinkle on top.

Sausage, Green Bean, and Potato Casserole Recipe Tips

Make It Ahead: You can prep the ingredients a day in advance by slicing the sausage, trimming the green beans, and cutting the potatoes. Store them separately in the fridge and assemble just before baking.
Crispier Potatoes: For extra crispy potatoes, preheat the baking sheet or dish in the oven before adding the potatoes. This helps them crisp up faster.
Add Bacon: For a smoky twist, toss some cooked, crumbled bacon into the casserole during the last 10 minutes of baking.

Frequently Asked Questions (FAQs)

1. Can I make this recipe with frozen green beans?

Yes, you can use frozen green beans. Just thaw them before adding to the casserole to ensure they cook evenly and don’t release too much water during baking.

2. What type of sausage works best for this recipe?

Smoked sausage like kielbasa or andouille works best for this recipe, as it’s already cooked and adds a smoky flavor. You can also use Italian sausage, but you’ll need to cook it fully before adding it to the casserole.

3. Can I use sweet potatoes instead of regular potatoes?

Absolutely! Sweet potatoes will add a slightly sweeter flavor and more nutrients to the dish. They roast well and pair nicely with sausage.

4. How do I store leftovers?

Store leftovers in an airtight container in the fridge for up to 3 days. Reheat in the oven or microwave before serving.

5. Can I freeze this casserole?

Yes, you can freeze the casserole before or after baking. If freezing before baking, assemble the casserole, then wrap it tightly in plastic wrap and foil. When ready to bake, thaw it in the fridge overnight and bake as directed. If freezing leftovers, let the casserole cool completely, then freeze in airtight containers for up to 3 months.

Conclusion

This Sausage, Green Bean, and Potato Casserole is a delicious, no-fuss dish that’s perfect for any night of the week. With smoky sausage, tender green beans, and crispy roasted potatoes, it’s a complete meal packed with flavor. It’s easy to make, versatile, and reheats beautifully, making it perfect for both dinner and meal prep. Whether you’re serving this for a cozy family dinner or bringing it to a potluck, it’s sure to be a hit. Enjoy!