Prep15 min
Cook20 min
Total35 min
Serves4
Ingredients
- 12 ounces fettuccine pasta
- 2 large red bell peppers
- 3 tablespoons olive oil, divided
- 3 cloves garlic, minced
- 1 small yellow onion, chopped
- 1 cup vegetable broth
- 3/4 cup heavy cream or full-fat coconut milk for vegan
- 4 cups fresh baby spinach
- 1/2 cup grated Parmesan cheese (omit for vegan or use nutritional yeast)
- Salt and freshly ground black pepper, to taste
- 1/4 teaspoon crushed red pepper flakes (optional)
- Fresh basil leaves, for garnish
- Juice of half a lemon
Instructions
- Preheat your oven to 425°F (220°C). Place the whole red bell peppers on a baking sheet and roast for 20 minutes, turning halfway until the skins are charred and blistered.
- Remove the roasted peppers and place them in a bowl covered with plastic wrap to steam for 10 minutes. This helps loosen the skin. Peel off the skins, remove seeds and stems, then roughly chop the peppers.
- Meanwhile, cook the fettuccine pasta in well-salted boiling water according to package instructions until al dente. Drain, reserving 1/2 cup of the pasta cooking water.
- In a large skillet, heat 2 tablespoons olive oil over medium heat. Add the chopped onion and cook until translucent, about 4-5 minutes. Add minced garlic and cook for another 1 minute until fragrant.
- Transfer the roasted peppers to a blender or food processor. Add the cooked onions and garlic, vegetable broth, and heavy cream (or coconut milk). Blend until very smooth. Pour the sauce back into the skillet.
- Heat the sauce over medium heat, seasoning with salt, pepper, and red pepper flakes if using. If the sauce is too thick, add reserved pasta water a little at a time to reach desired consistency.
- Add the fresh spinach to the sauce and cook, stirring, until wilted. Stir in the cooked pasta and Parmesan cheese (or nutritional yeast). Toss gently to combine and warm through.
- Finish with a squeeze of fresh lemon juice to brighten the flavors. Serve immediately garnished with fresh basil leaves.
Chef tips
- For a vegan version, substitute heavy cream with full-fat coconut milk and Parmesan cheese with nutritional yeast or vegan cheese.
- If you don't have time to roast peppers, you can use 1 to 1.5 cups of jarred roasted red peppers drained well, though fresh roasting boosts flavor.
- Reserve some pasta cooking water to adjust sauce consistency for a silky texture without thinning flavor.
- Add crushed red pepper flakes gradually for subtle heat; omit or reduce if serving kids or spice-sensitive eaters.
Pros
- Rich, creamy sauce packed with roasted vegetable flavor without dairy overload.
- Quick to prepare—perfect for weeknights yet elegant for guests.
- Easy to customize for vegan diets and spice preferences.
Cons / watch-outs
- Requires oven roasting step that adds about 20 minutes to prep time.
- Uses heavy cream or coconut milk, which may not suit low-fat diets.
Diet & nutrition notes
Diet notes: Vegetarian-friendly and easily adaptable to vegan diets. Contains dairy unless substituted. Gluten in pasta; use gluten-free pasta for gluten-sensitive diets.
Nutrition note: One serving provides a balanced mix of carbohydrates from pasta, healthy fats from olive oil, and vitamins from spinach and bell peppers. Moderate in calories, with around 450-500 kcal per serving depending on cream and cheese used.
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