Miso-Caramelized Onion and Mushroom Flatbread
A savory flatbread with sweet caramelized onions and earthy mushrooms, finished with a miso glaze for umami depth. This mediterranean-inspired vegetarian ready in about 45 minutes pairs whole wheat flatbread, large thinly sliced onions, cremini mushrooms for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 320 calories and feeds 2, 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
- 2 whole wheat flatbread
- 2 large thinly sliced onions
- 8 oz cremini mushrooms
- 2 tbsp miso paste
- 1 tbsp maple syrup
- 2 tbsp olive oil
- 1 tsp chopped fresh thyme
- 1/4 tsp salt
- 1/8 tsp black pepper
Instructions
- Step 1: Heat 1 tbsp olive oil in a large skillet over medium heat. Add onions and a pinch of salt, then cook uncovered for 20 minutes, stirring occasionally until deeply golden and caramelized.
- Step 2: Add mushrooms to the skillet with remaining 1 tbsp olive oil and cook for 8 minutes until tender and browned.
- Step 3: Whisk miso paste, maple syrup, and 1 tbsp water until smooth, then stir into onion-mushroom mixture.
- Step 4: Spread mixture evenly over flatbreads, leaving a 1/2-inch border. Sprinkle with thyme, salt, and pepper.
- Step 5: Place flatbreads on a baking sheet and broil for 3-4 minutes until edges are crisp and toppings are bubbly.
- Step 6: Slice and serve immediately while hot.
Frequently asked questions
How long does Miso-Caramelized Onion and Mushroom Flatbread take to make?
Total time is about 45 minutes (15 min prep + 30 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 Miso-Caramelized Onion and Mushroom 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 whole wheat flatbread from drying out.
Can I substitute ingredients in Miso-Caramelized Onion and Mushroom 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 Miso-Caramelized Onion and Mushroom Flatbread for a different number of people?
The recipe is written for 2 servings. Multiply each ingredient by (your serving target / 2). 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 Miso-Caramelized Onion and Mushroom Flatbread?
Mediterranean vegetarian 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.
What others are saying
- ★★★★★
The miso and caramelized onions created such a rich, umami depth—perfect with the mushrooms. A new favorite!
- ★★★★★
Loved it! Made for a cozy family dinner, everyone asked for the recipe.
- ★★★★☆
Tasted amazing, but the onions took way longer to caramelize than the recipe hinted at. Next time I'll start earlier!
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