Tomato and Cauliflower Sauce with Spaghetti for Picky Eaters

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

A smooth tomato sauce enriched with blended cauliflower that adds nutrition and creaminess without altering the familiar taste, served over spaghetti. This italian-inspired pasta ready in about 30 minutes blends spaghetti pasta, roughly chopped cauliflower florets, canned tomato puree into a versatile sauce that lifts everything from grain bowls and roasted vegetables to grilled proteins — a small-batch staple worth keeping in the fridge. Each serving lands at about 350 calories and feeds 4, so a small batch covers several meals across the week without taking over the fridge. 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.

Prep: 10 min Cook: 20 min Serves 4 Italian cuisine 350 cal/serving
Plan a meal with the AI → Shop this recipe on Instacart → Shop equipment ↓

Ingredients

Instructions

  1. Step 1: Bring a large pot of salted water to a rolling boil. Add 10 oz spaghetti and cook for 8-10 minutes until al dente, then drain and set aside.
  2. Step 2: Meanwhile, steam 2 cups roughly chopped cauliflower florets over boiling water for 8 minutes until very tender.
  3. Step 3: Heat 2 tbsp olive oil in a medium saucepan over medium heat. Add 1 small finely chopped onion and sauté for 4 minutes until translucent.
  4. Step 4: Add 2 minced garlic cloves and sauté for 30 seconds until fragrant.
  5. Step 5: Transfer the steamed cauliflower to a blender with 1 1/4 cups canned tomato puree, 1 tsp dried basil, 1/2 tsp dried oregano, 3/4 tsp salt, and 1/4 tsp black pepper. Blend until smooth and creamy.
  6. Step 6: Pour the blended sauce back into the saucepan and simmer over low heat for 5 minutes to warm through and thicken slightly.
  7. Step 7: Toss the cooked spaghetti with the tomato-cauliflower sauce until evenly coated. Serve immediately, topped with 1/4 cup grated Parmesan cheese if desired.

Equipment for this recipe

Top-rated tools to make this recipe successfully.

More Knives & cutting boards → Shop all kitchen tools →

Frequently asked questions

How long does Tomato and Cauliflower Sauce with Spaghetti for Picky Eaters take to make?

Total time is about 30 minutes (10 min prep + 20 min cook). A small batch typically covers several meals in the week — store as the recipe directs.

How do I store leftover Tomato and Cauliflower Sauce with Spaghetti for Picky Eaters?

Transfer to an airtight jar and refrigerate for up to 5–7 days. Most sauces freeze well for up to 2 months — portion into small containers or freezer bags so you can thaw only what you need. Stir before serving; cream- or yogurt-based sauces may separate on standing.

Can I substitute ingredients in Tomato and Cauliflower Sauce with Spaghetti for Picky Eaters?

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 Tomato and Cauliflower Sauce with Spaghetti for Picky Eaters 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 Tomato and Cauliflower Sauce with Spaghetti for Picky Eaters?

Italian 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.