Sweet Potato Pastelón with Tomato Sauce

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A vegetarian twist on the classic Puerto Rican casserole, featuring layers of roasted sweet potatoes, herbed tomato sauce, and melted cheese. This puerto rican-inspired vegetarian (vegetarian) ready in about 60 minutes blends olive oil, salt, medium, finely chopped onion 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 300 calories and feeds 6, 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.

★ 3.7 (13 ratings) Prep: 20 min Cook: 40 min Serves 6 Puerto Rican cuisine 300 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 375°F (190°C). Toss 4 peeled and 1/4-inch-sliced medium sweet potatoes with 2 tbsp olive oil and 1/2 tsp salt, then arrange in a single layer in a greased 9x13-inch baking dish.
  2. Step 2: In a skillet, heat 1 tbsp olive oil over medium heat. Add 1 chopped medium onion and cook for 5 minutes until softened. Add 2 minced garlic cloves and cook for 1 minute, then add 1 can crushed tomatoes, 1/2 tsp dried oregano, and 1/4 tsp red pepper flakes. Simmer for 10 minutes.
  3. Step 3: Spread the tomato sauce evenly over the sweet potatoes in the baking dish.
  4. Step 4: Sprinkle with 1 cup shredded mozzarella and 1/4 cup grated Parmesan cheese.
  5. Step 5: Bake for 30-35 minutes until the cheese is melted and bubbly and the sweet potatoes are tender.

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Frequently asked questions

How long does Sweet Potato Pastelón with Tomato Sauce take to make?

Total time is about 60 minutes (20 min prep + 40 min cook). A small batch typically covers several meals in the week — store as the recipe directs.

How do I store leftover Sweet Potato Pastelón with Tomato Sauce?

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 Sweet Potato Pastelón with Tomato Sauce?

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 Sweet Potato Pastelón with Tomato Sauce for a different number of people?

The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). 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.

Is Sweet Potato Pastelón with Tomato Sauce vegetarian?

Yes — this recipe is tagged vegetarian based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.

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