One-Pot Mushroom Pasta with Spinach

By AislePrompt Editorial · Published 2026-04-10 · Updated 2026-04-10

Creamy tomato-based pasta with earthy mushrooms and wilted spinach, ready in 35 minutes with just one pot to clean. This Italian-inspired one-pot recipe, ready in about 35 minutes, pairs spaghetti, olive oil, mushrooms for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 500 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

• 12 oz spaghetti
• 2 tbsp olive oil
• 8 oz, sliced mushrooms
• 3, minced garlic cloves
• 14 oz can diced tomatoes
• 1/2 cup heavy cream
• 3 cups fresh spinach
• 1/2 cup, grated parmesan cheese
• 1 tsp salt
• 1/4 tsp red pepper flakes

The pan we’d use for this → Best Nonstick Cookware for 2026: Top 5 Skillet Picks + Buying Guide

Instructions

1. Step 1: Bring a large pot of salted water to a rolling boil. Add 12 oz spaghetti and cook for 8-10 minutes until al dente, then drain, reserving 1/2 cup pasta water.
2. Step 2: While pasta cooks, heat 2 tbsp olive oil in a large skillet over medium heat. Add 8 oz sliced mushrooms and cook for 5 minutes until golden. Stir in 3 minced garlic cloves and cook for 1 minute until fragrant.
3. Step 3: Add 14 oz diced tomatoes, 1 tsp salt, and 1/4 tsp red pepper flakes to the skillet. Simmer for 3 minutes until slightly thickened.
4. Step 4: Stir drained spaghetti into the skillet, then add 1/2 cup heavy cream and 1/2 cup reserved pasta water. Toss for 2 minutes until sauce coats pasta. Stir in 3 cups fresh spinach until wilted, then add 1/2 cup grated parmesan and toss until melted.