Slow-Cooker Parmesan Pepperoni Sausage Pesto Farfalle Step-by-step instructions

Before you start

Before you start, measure out all the ingredients and have them ready. Remove the sausage from the refrigerator and let it sit at room temperature for 15 to 30 minutes—this helps it cook more evenly. Slice the pepperoni if it isn’t pre-sliced.

Wash and dry the baby spinach if needed. Grate the Parmigiano-Reggiano if you’re using a block. Set out your slow cooker and make sure it’s clean. No need to preheat or grease it; the natural fats from the meats and cheese will prevent sticking.

Instructions

Layering the Base

1. 1Layer the Proteins
   Scatter the sliced pepperoni evenly over the bottom of the slow cooker. Add the Italian sausage in crumbles, breaking up any large chunks with your fingers or a spoon. Spread the meats into an even layer.
   Look for The bottom of the slow cooker is covered with a single layer of pepperoni and sausage.
   Tip If the sausage is in links, remove the casings and crumble the meat directly into the pot.
2. 2Add the Pasta and Greens
   Sprinkle the farfalle pasta over the meat layer. Tear the spinach leaves into smaller pieces if they are large, then scatter them over the pasta. Drop spoonfuls of basil pesto over the top, spreading it as evenly as possible.
   Look for The pasta, spinach, and pesto are distributed across the meat layer.
   Tip No need to stir—the layers will meld as the slow cooker works.
3. 3Top with Cheeses
   Sprinkle the shredded Italian four-cheese blend evenly over the top of the pasta mixture. Finish with the freshly grated Parmigiano-Reggiano, covering the surface completely.
   Look for The top is covered with a thick layer of shredded and grated cheeses.
   Tip The cheese will melt into a golden crust as it cooks.

At the end of this phase, the slow cooker contains distinct layers: a meaty base of pepperoni and sausage, a middle layer of pasta and spinach, and a cheesy top. The pesto is visible in spoonfuls. Everything is raw and waiting for the slow cooker to work its magic.

Slow Cooking

4. 4Cook on Low
   Cover the slow cooker and set it to low. Cook for 4 hours, or until the pasta is tender and the sausage is cooked through. Do not lift the lid during the first 3 hours to keep the heat steady.
   Look for The edges are bubbling and the cheese is melted and golden.
   Safe temperature 160°F (71°C) internal temperature (ground meat)
   Tip If the mixture seems dry at the 3-hour mark, add 1/4 cup of water or broth.
5. 5Check the Sausage
   After 4 hours, use an instant-read thermometer to check the internal temperature of the sausage. It must reach 160°F (71°C) to be safe to eat. If it hasn’t reached that temperature, cover and cook for another 30 minutes.
   Look for The thermometer reads at least 160°F (71°C) when inserted into the sausage.
   Safe temperature 160°F (71°C) internal temperature (ground meat)
   Tip Stir gently to distribute the melted cheese before serving.

After 4 hours on low, the cheese is melted and bubbly, the pasta is tender, and the sausage is cooked through. The aroma is rich with basil, garlic, and Italian spices. The edges of the dish are golden and slightly crisp, and the center is hot and steaming.

Serving

6. 6Stir and Serve
   Stir the pasta mixture gently to combine the layers. Use a serving spoon to lift out a generous portion, letting the cheese stretch. Serve hot onto plates or bowls.
   Look for The pasta is coated in pesto and cheese, with melted stretches from the spoon.
   Tip For extra crispness, broil the plated pasta for 2 minutes.

When you stir the pasta, the cheese stretches and the pesto coats every piece of farfalle. The sausage is browned, the pepperoni is slightly curled, and the spinach is fully wilted. Serving onto plates, the dish looks like a rustic, hearty pasta bake, ready to be enjoyed.

Common mistakes

One common mistake is lifting the lid too often during cooking, which releases steam and lowers the temperature, leading to undercooked pasta. Resist the urge to peek for the first 3 hours.

Another mistake is using too little liquid—if the mixture looks dry after a few hours, add a splash of water or broth.

Overcooking can make the pasta mushy, so stick to the recommended time. Finally, don’t skip the temperature check on the sausage; it’s essential for food safety.

How to tell it’s done

The dish is done when the pasta is tender and the sausage is cooked through. The internal temperature of the sausage should reach at least 160°F (71°C) on an instant-read thermometer.

The cheese on top will be melted and lightly golden, and the edges will be bubbly. The spinach will be wilted and incorporated into the sauce. Let the dish rest for 5 minutes before serving to allow the flavors to settle and the cheese to set slightly.

• Ground meat: 160°F (71°C) in the thickest part