One-Pot Mushroom and Spinach Pasta with Garlic
A comforting weeknight meal featuring tender pasta coated in a savory mushroom and garlic sauce, finished with fresh spinach and Parmesan. This Mediterranean-inspired one-pot recipe (vegetarian), ready in about 40 minutes, pairs spaghetti, olive oil, onion for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 450 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.
Ingredients
- 8 oz spaghetti
- 2 tbsp olive oil
- 1 medium, finely diced onion
- 3 cloves, minced garlic
- 8 oz, sliced cremini mushrooms
- 1 cup vegetable broth
- 1/2 cup heavy cream
- 2 cups fresh spinach
- 1/4 cup, grated Parmesan cheese
- 1/4 tsp red pepper flakes
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Equipment for this recipe
Tools this recipe's steps call for, with a link to each on Amazon.
Instructions
- Step 1: Bring a large pot of salted water to a rolling boil. Add 8 oz spaghetti and cook for 8-10 minutes until al dente, then drain and reserve 1/2 cup pasta water.
- Step 2: Heat 2 tbsp olive oil in a large skillet over medium heat. Add 1 medium onion, finely diced, and cook for 5 minutes until softened and translucent.
- Step 3: Add 3 garlic cloves, minced, and 8 oz cremini mushrooms, sliced, to the skillet. Cook for 7 minutes until mushrooms release moisture and turn golden brown, stirring occasionally.
- Step 4: Pour in 1 cup vegetable broth and 1/2 cup heavy cream, stirring to combine. Bring to a gentle simmer and cook for 3 minutes until slightly thickened.
- Step 5: Add the drained spaghetti to the skillet along with 2 cups fresh spinach and 1/4 tsp red pepper flakes. Toss until spinach wilts completely, about 2 minutes.
- Step 6: Stir in 1/4 cup grated Parmesan cheese and 1/2 cup reserved pasta water. Cook for 1 minute, stirring until sauce coats the pasta evenly.
- Step 7: Season with salt and black pepper to taste and serve immediately.








