Inspired by the couple’s journey on 90 Day Fiancé, this dish is a comforting, hearty casserole that brings together savory sausage, creamy potatoes, and a golden cheese crust. It’s a perfect weeknight dinner that feels special, just like a love story worth savoring. This recipe is designed to be straightforward, using simple ingredients to create a satisfying meal that everyone will enjoy.
Ingredients
- 1 lb (450 g) mild Italian sausage, casings removed
- 1 tbsp (15 ml) olive oil
- 1 large yellow onion, diced (about 1 cup / 150 g)
- 3 cloves garlic, minced
- 2 lbs (900 g) russet potatoes, peeled and thinly sliced (about 1/8-inch thick)
- 1 cup (240 ml) chicken broth, low-sodium
- 1 cup (240 ml) heavy cream
- 1 tsp (5 g) salt, plus more to taste
- 1/2 tsp (2 g) black pepper, freshly ground
- 1/2 tsp (2 g) dried thyme
- 1 cup (100 g) shredded Gruyère cheese
- 1/2 cup (50 g) grated Parmesan cheese
- 2 tbsp (30 g) unsalted butter, cut into small pieces
- Fresh parsley, chopped, for garnish (optional)
Instructions
- Preheat your oven to 375°F (190°C). Grease a 9×13-inch (23×33 cm) baking dish with butter or non-stick spray.
- In a large skillet over medium-high heat, heat the olive oil. Add the Italian sausage, breaking it up with a spoon. Cook until browned and cooked through, about 8-10 minutes. The sausage should reach a safe minimum internal temperature of 160°F (71°C) as measured with a food thermometer. Use a slotted spoon to transfer the sausage to a plate, leaving a little fat in the skillet.
- Reduce the heat to medium. Add the diced onion to the same skillet and cook until softened, about 5 minutes. Add the minced garlic and cook for another minute until fragrant.
- Pour the chicken broth into the skillet, scraping up any browned bits from the bottom. Bring to a simmer and let it reduce slightly, about 3 minutes. Remove from heat and stir in the heavy cream, salt, pepper, and dried thyme.
- Layer half of the sliced potatoes in the prepared baking dish. Top with the cooked sausage and the onion-garlic mixture. Arrange the remaining potato slices on top, overlapping slightly.
- Pour the cream mixture evenly over the potatoes. Sprinkle with the shredded Gruyère and Parmesan cheese. Dot the top with the butter pieces.
- Cover the dish with aluminum foil and bake for 45 minutes. Then, remove the foil and continue baking for another 25-30 minutes, until the potatoes are tender when pierced with a fork and the top is golden and bubbly. If the top browns too quickly, cover loosely with foil again.
- Let the casserole rest for 10 minutes before serving. Garnish with fresh parsley if desired.
Tips
- Slice potatoes evenly: Use a mandoline or a very sharp knife to get uniform 1/8-inch slices. This ensures they cook evenly and become tender at the same time.
- Substitute cheese: If you don’t have Gruyère, use Swiss cheese or a good sharp cheddar. Parmesan can be replaced with Pecorino Romano for a saltier, more pungent flavor.
- Make it ahead: You can assemble the entire casserole (without baking) up to 24 hours in advance. Cover and refrigerate. When ready to bake, add about 15-20 minutes to the covered baking time since you’re starting from cold.
- Don’t skip the rest: Letting the casserole rest after baking allows the sauce to thicken slightly and makes it easier to serve neat portions.
Serving Suggestions
This hearty casserole is a meal in itself, but it pairs beautifully with a simple green salad dressed with a light vinaigrette to cut through the richness. Steamed green beans or roasted asparagus also make excellent sides. For a crusty bread to soak up any extra sauce, serve with a warm baguette or garlic bread.
Variations
- Vegetarian: Omit the sausage and add a can of drained and rinsed cannellini beans or a cup of sautéed mushrooms for extra heartiness. Use vegetable broth instead of chicken broth.
- Spicy: Use hot Italian sausage and add a pinch of red pepper flakes to the cream mixture for a kick of heat.
- Add vegetables: Sauté a cup of sliced mushrooms or a handful of spinach with the onions for added flavor and nutrition.
- Cheese swap: Try smoked Gouda or provolone in place of the Gruyère for a different flavor profile.
Storage and Reheating
Store any leftovers in an airtight container in the refrigerator for up to 3-4 days. To reheat, place a portion in the microwave on medium power until heated through, or reheat in a 350°F (175°C) oven for about 15-20 minutes, until hot and bubbly. The casserole can also be frozen for up to 2 months. Thaw overnight in the refrigerator before reheating. Reheat leftovers to an internal temperature of 165°F (74°C) before serving.
Frequently Asked Questions
Can I use sweet potatoes instead of russets? Yes, sweet potatoes work well and add a slightly sweet flavor. They may cook a bit faster, so check for tenderness a few minutes earlier.
What if I don’t have heavy cream? You can substitute half-and-half or whole milk, but the sauce will be thinner. To thicken, mix 1 tablespoon of cornstarch with 2 tablespoons of cold water and stir it into the cream mixture before pouring over the potatoes.
Can I prepare this in a slow cooker? Yes, you can layer the ingredients in a slow cooker and cook on low for 6-7 hours or on high for 3-4 hours, until the potatoes are tender. The top won’t be as brown; you can broil it for a few minutes after cooking to crisp the cheese.
How do I know when the potatoes are done? Insert a sharp knife or a fork into the center of the casserole. It should slide in with little resistance. The sauce should be bubbly and the top golden brown.
Can I use pre-shredded cheese? Yes, but freshly shredded cheese melts more smoothly because it doesn’t contain anti-caking agents. If using pre-shredded, it will still work, just expect a slightly less creamy result.
Is this dish gluten-free? Yes, as long as you use gluten-free Italian sausage and verify your chicken broth is gluten-free. All other ingredients are naturally gluten-free.
Related
- Potato Pancakes from Instant Mashed Potatoes
- Potato Pancakes from Mashed Potatoes
- Potato Pancakes Origin and Authentic Recipe
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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