Sautéed Aged Cheddar and Caramelized Onion Flatbread

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

A rustic flatbread topped with deeply caramelized onions and sharp aged cheddar cheese, bringing out the rich flavors of aged ingredients. This Mediterranean-inspired pizza recipe (vegetarian), ready in about 60 minutes, pairs all-purpose flour, active dry yeast, warm water for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 350 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.

Prep: 15 min Cook: 45 min Serves 4 Mediterranean cuisine 350 cal/serving
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Ingredients

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Instructions

  1. Step 1: In a large bowl, combine 2 cups all-purpose flour, 1 tsp active dry yeast, 1 tsp salt, and 3/4 cup warm water (110°F). Stir until a dough forms, then knead on a floured surface for 8 minutes until smooth and elastic. Cover and let rise for 1 hour at room temperature until doubled.
  2. Step 2: While dough rises, heat 2 tbsp olive oil in a skillet over medium-low heat. Add 2 thinly sliced yellow onions and cook, stirring occasionally, for 30 minutes until deeply caramelized and golden brown.
  3. Step 3: Preheat oven to 450°F (230°C). Roll out dough on a floured surface into a 12-inch oval. Transfer to a baking sheet.
  4. Step 4: Spread the caramelized onions evenly over the dough, sprinkle 1 cup shredded aged sharp cheddar cheese on top, then season with 1/2 tsp black pepper and 1 tbsp fresh thyme leaves.
  5. Step 5: Bake for 12-15 minutes until the crust is golden and cheese is melted and bubbling. Remove from oven and let cool 5 minutes before slicing.

Frequently asked questions

How long does Sautéed Aged Cheddar and Caramelized Onion Flatbread take to make?

Total time is about 60 minutes (15 min prep + 45 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 Sautéed Aged Cheddar and Caramelized Onion Flatbread?

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 all-purpose flour from drying out.

Can I substitute ingredients in Sautéed Aged Cheddar and Caramelized Onion Flatbread?

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 Sautéed Aged Cheddar and Caramelized Onion Flatbread 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.

Is Sautéed Aged Cheddar and Caramelized Onion Flatbread 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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