Italian Oven-Baked Caprese Stuffed Portobello Mushrooms
Large portobello mushrooms filled with fresh mozzarella, tomato, and basil, baked until melty and topped with a balsamic glaze. This italian-inspired vegetarian (vegetarian, gluten free) ready in about 35 minutes pairs large portobello mushroom caps, sliced fresh mozzarella, halved cherry tomatoes for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 220 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.
Ingredients
- 4 large portobello mushroom caps
- 8 oz, sliced fresh mozzarella
- 1 cup, halved cherry tomatoes
- 12 leaves, torn fresh basil leaves
- 3 tbsp olive oil
- 2 cloves, minced garlic
- 2 tbsp balsamic vinegar
- 1 tsp salt
- 1/2 tsp black pepper
Instructions
- Step 1: Preheat oven to 400°F. Clean 4 large portobello mushroom caps by removing stems and gently wiping with a damp cloth. Brush each cap with 3 tbsp olive oil and sprinkle 1 tsp salt and 1/2 tsp black pepper evenly over them.
- Step 2: Place the mushroom caps gill side up on a baking sheet lined with parchment paper. Distribute 2 cloves minced garlic evenly into each mushroom cavity.
- Step 3: Layer each mushroom cap with 2 oz sliced fresh mozzarella, then top with 1 cup halved cherry tomatoes and 12 torn fresh basil leaves divided among the 4 mushrooms.
- Step 4: Bake the mushrooms for 20 minutes until the mozzarella is melted and bubbly and the mushrooms are tender.
- Step 5: Meanwhile, simmer 2 tbsp balsamic vinegar in a small saucepan over medium heat for 5 minutes until slightly thickened.
- Step 6: Drizzle the balsamic reduction over the baked mushrooms before serving for a sweet and tangy finish.
Equipment for this recipe
Top-rated tools to make this recipe successfully.
Frequently asked questions
How long does Italian Oven-Baked Caprese Stuffed Portobello Mushrooms take to make?
Total time is about 35 minutes (10 min prep + 25 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 Italian Oven-Baked Caprese Stuffed Portobello Mushrooms?
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 sliced fresh mozzarella from drying out.
Can I substitute ingredients in Italian Oven-Baked Caprese Stuffed Portobello Mushrooms?
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 Italian Oven-Baked Caprese Stuffed Portobello Mushrooms 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 Italian Oven-Baked Caprese Stuffed Portobello Mushrooms vegetarian?
Yes — this recipe is tagged vegetarian, gluten free based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.
