Crockpot Parmesan Pepperoni Sausage Red Pepper Shells

This slow cooker dinner is the definition of set-and-forget comfort. Layers of savory pepperoni, crumbled Italian sausage, conchiglie shells, and a smoky roasted red pepper cream sauce cook low and slow until the pasta is tender and the cheese is melted and bubbling. Just dump everything into the Crockpot, walk away, and return to a rich, satisfying meal that tastes like you spent hours at the stove.

This recipe brings together the bold flavors of pepperoni and Italian sausage with the sweet-smoky depth of roasted red pepper cream sauce. The pasta shells cook directly in the sauce, absorbing every bit of flavor as they soften.

A generous topping of Italian four-cheese blend and Parmigiano-Reggiano melts into a golden, savory crust. It is a one-pot meal that requires no pre-cooking, no stirring, and very little hands-on time. Perfect for busy weeknights or casual gatherings, this dish delivers hearty, cheesy comfort with minimal effort.

Ingredients

Why this recipe works

Cooking the pasta directly in the slow cooker with the sauce allows the shells to absorb the liquid as they soften, creating a cohesive, saucy dish without a separate pot of boiling water.

The layers of meat, pasta, and sauce stay distinct during cooking, so the pasta doesn't turn to mush. The low, steady heat of the slow cooker gently melds the flavors together while the cheese melts into a creamy, bubbling topping.

The combination of pepperoni and Italian sausage provides a double dose of savory, spiced meat that stands up to the rich red pepper sauce.

The smoky roasted red pepper cream sauce adds a subtle sweetness and a touch of heat, balanced by the salty, umami notes of the aged Parmesan. This layering technique ensures every spoonful has a bit of everything, from tender pasta to crispy-edged pepperoni to gooey cheese.

Notes and substitutions

Choose a good-quality Italian sausage with a high meat-to-fat ratio for the best flavor. If you prefer a milder dish, use sweet Italian sausage instead of hot.

The conchiglie shells are ideal because their shape holds the sauce and cheese, but any short pasta like penne or rigatoni will work. The roasted red pepper cream sauce can be homemade or store-bought; look for a thick, rich sauce to avoid a watery result.

The Italian four-cheese blend typically includes mozzarella, provolone, Parmesan, and Asiago, giving a nice mix of melt and flavor. Freshly grating the Parmigiano-Reggiano is worth the extra effort for its nutty, salty depth. If you don't have a slow cooker, this can be baked in a covered Dutch oven at 350°F (175°C) for about 1 hour, but the slow cooker version is truly hands-off.

• Italian sausage: Ground beef or ground pork, seasoned with fennel and oregano
• Roasted red pepper cream sauce: Marinara sauce blended with 1/2 cup heavy cream and 1/2 cup roasted red peppers
• Conchiglie shells: Penne, rigatoni, or other short pasta shapes
• Italian four-cheese blend: Shredded mozzarella and provolone

Equipment

• 6-quart slow cooker
• Large skillet
• Wooden spoon
• Measuring cups
• Measuring spoons
• Chef's knife
• Cutting board
• Serving spoon