Creamy Red Pepper Alfredo Pasta Recipe
Introduction
This creamy red pepper Alfredo pasta is a delicious twist on the classic sauce, packed with vibrant flavor and a smooth, satisfying texture. Made with wholesome ingredients like cashews and red bell pepper, it’s perfect for a comforting meal that feels indulgent yet nutritious.

Ingredients
- 1 red bell pepper (raw or roasted)
- 1/2 cup water
- 1/2 cup raw cashews (or macadamia nuts)
- 1/4 cup nutritional yeast (or Parmesan cheese)
- 1 tsp salt
- 2 tsp onion powder
- 1/2 tsp ground turmeric
- 1/8 tsp ground nutmeg (optional)
- 10 oz pasta (or spaghetti squash or vegetables)
- Optional: grilled or roasted veggies, beans, or other add-ins
Instructions
- Step 1: Place the cashews in a bowl, cover with water, and soak for 6 to 8 hours. Drain and pat them dry thoroughly.
- Step 2: In a food processor or high-speed blender, combine the soaked cashews, red bell pepper, 1/2 cup water, nutritional yeast, salt, onion powder, turmeric, and nutmeg (if using). Blend until completely smooth.
- Step 3: Cook the pasta in salted boiling water according to the package instructions. While the pasta cooks, gently heat the sauce in a pot until warmed through.
- Step 4: Drain the pasta fully, but do not rinse. Toss the pasta with the warm sauce, seasoning with additional salt and pepper if needed.
- Step 5: Stir in any optional grilled or roasted vegetables, beans, or other add-ins you like, then serve immediately.
Tips & Variations
- Roasting the red bell pepper before blending deepens the flavor and adds a subtle smokiness.
- Substitute macadamia nuts for cashews for a richer sauce.
- Add fresh herbs like basil or parsley for a bright finish.
- For a dairy version, Parmesan cheese works well instead of nutritional yeast.
- Try serving over roasted spaghetti squash or steamed vegetables for a low-carb option.
Storage
Store any leftover sauce separately in an airtight container in the refrigerator for up to 3 days. The sauce may thicken when chilled; simply reheat gently on the stove with a splash of water to loosen. Prepared pasta with sauce is best enjoyed fresh but can be refrigerated for up to 1 day. Reheat gently to avoid drying out.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use roasted red peppers instead of raw?
Yes, roasted red peppers add a sweeter, smoky flavor that enhances the sauce. Just peel and seed them before blending.
Do I have to soak the cashews overnight?
Soaking softens the nuts for a creamy texture and reduces blending time. If short on time, soak in hot water for 1-2 hours, though the texture may be less smooth.
PrintCreamy Red Pepper Alfredo Pasta Recipe
A deliciously creamy and dairy-free red pepper Alfredo pasta made with blended cashews and roasted red bell pepper, perfect for a vegan or vegetarian meal. This recipe offers a rich, flavorful sauce that’s easy to prepare and pairs wonderfully with pasta or vegetables.
- Prep Time: 10 minutes (plus 6-8 hours soaking time)
- Cook Time: 15 minutes
- Total Time: 6 hours 25 minutes
- Yield: 4 servings 1x
- Category: Main Course
- Method: Blending
- Cuisine: Italian-inspired
- Diet: Vegan
Ingredients
Alfredo Sauce Ingredients
- 1 red bell pepper (raw or roasted)
- 1/2 cup water
- 1/2 cup raw cashews (or macadamia nuts)
- 1/4 cup nutritional yeast (or Parmesan cheese)
- 1 tsp salt
- 2 tsp onion powder
- 1/2 tsp ground turmeric
- 1/8 tsp ground nutmeg (optional)
Main Dish
- 10 oz pasta (or spaghetti squash or vegetables)
- Optional grilled or roasted veggies, beans, or other add-ins
Instructions
- Soak Nuts: Place the raw cashews or macadamia nuts in a cereal bowl, cover completely with water, and allow them to soak for 6-8 hours. After soaking, drain the nuts fully and pat them dry to prepare for blending.
- Prepare Alfredo Sauce: In a food processor or high-speed blender, combine the soaked nuts, red bell pepper, 1/2 cup water, nutritional yeast or Parmesan, salt, onion powder, turmeric, and optional nutmeg. Blend until the mixture is completely smooth and creamy.
- Cook Pasta: In a separate pot, bring salted water to a boil and cook the pasta according to the package instructions until al dente. Drain the pasta thoroughly but do not rinse it, to retain the starches for better sauce adherence.
- Heat Sauce and Combine: Pour the blended sauce into a pot and gently heat it to your desired temperature. Once heated, pour the sauce over the cooked pasta, season with additional salt and pepper if needed, and gently stir in any optional cooked vegetables, beans, or other add-ins to complete the dish.
Notes
- Soaking the nuts overnight softens them and yields a smoother sauce texture.
- Roasted red bell peppers add a deeper, smoky flavor, but raw peppers will work for a fresher taste.
- You can substitute pasta with spaghetti squash or steamed vegetables for a low-carb option.
- Adjust seasoning gently after blending as the nutritional yeast or cheese may add saltiness.
- The sauce can be made in advance and stored refrigerated for up to 3 days.
Keywords: creamy red pepper Alfredo, vegan Alfredo sauce, cashew Alfredo pasta, dairy-free pasta sauce, Italian-inspired vegan recipe

