One-Pot Tomato and Spinach Pasta with Mozzarella

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A quick weeknight dinner where spaghetti, tomatoes, and spinach combine in a single pot, topped with melted mozzarella for creamy satisfaction. This american-inspired pasta ready in about 30 minutes pairs Spaghetti, Olive oil, Garlic for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 400 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.

★ 4.5 (11 ratings) Prep: 10 min Cook: 20 min Serves 4 American cuisine 400 cal/serving
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Ingredients

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Instructions

  1. Step 1: Bring large pot of salted water to rolling boil. Add 8 oz spaghetti and cook 8-10 minutes until al dente, drain, and reserve 1/2 cup pasta water.
  2. Step 2: Heat 2 tbsp olive oil in large skillet over medium heat. Add 3 minced garlic cloves and 1/4 tsp red pepper flakes, sauté 30 seconds until fragrant — do not brown.
  3. Step 3: Stir in 1 tbsp tomato paste and cook 1 minute, then add 14 oz can diced tomatoes (with juice).
  4. Step 4: Add drained spaghetti to skillet with 1/2 cup reserved pasta water and 4 oz fresh spinach. Toss vigorously 1 minute until spinach wilts and sauce thickens.
  5. Step 5: Remove from heat, stir in 1/2 cup shredded mozzarella until melted, and season with 1/2 tsp salt. Serve immediately.

Frequently asked questions

How long does One-Pot Tomato and Spinach Pasta with Mozzarella take to make?

Total time is about 30 minutes (10 min prep + 20 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover One-Pot Tomato and Spinach Pasta with Mozzarella?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep spaghetti from drying out.

Can I substitute ingredients in One-Pot Tomato and Spinach Pasta with Mozzarella?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale One-Pot Tomato and Spinach Pasta with Mozzarella for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with One-Pot Tomato and Spinach Pasta with Mozzarella?

American pasta like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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