Creamy Avocado Feta Stuffed Portobellos

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Hearty portobello mushrooms filled with a rich avocado-feta mixture, baked until golden for a satisfying vegetarian keto meal. This mediterranean-inspired vegetarian (vegetarian, keto) ready in about 28 minutes pairs medium, diced avocado, crumbled feta cheese, olive oil for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 320 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.

★ 3.8 (12 ratings) Prep: 10 min Cook: 18 min Serves 4 Mediterranean cuisine 320 cal/serving
Plan a meal with the AI → Shop this recipe on Instacart → Shop equipment ↓

Ingredients

Instructions

  1. Step 1: Preheat oven to 400°F. Brush mushroom caps with 1 tbsp olive oil, then place gill-side up on a baking sheet. Season with 1/8 tsp sea salt and 1/4 tsp red pepper flakes.
  2. Step 2: In a bowl, combine 1 diced avocado, 2 oz crumbled feta, 1 tsp chopped dill, and 1/8 tsp sea salt. Spoon mixture evenly into mushroom caps.
  3. Step 3: Bake for 18 minutes until mushrooms are tender and filling is warm, then sprinkle with extra dill. Serve immediately while hot.

Equipment for this recipe

Top-rated tools to make this recipe successfully.

More Bakeware & baking tools → Shop all kitchen tools →

Frequently asked questions

How long does Creamy Avocado Feta Stuffed Portobellos take to make?

Total time is about 28 minutes (10 min prep + 18 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 Creamy Avocado Feta Stuffed Portobellos?

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 medium, diced avocado from drying out.

Can I substitute ingredients in Creamy Avocado Feta Stuffed Portobellos?

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 Creamy Avocado Feta Stuffed Portobellos 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 Creamy Avocado Feta Stuffed Portobellos vegetarian?

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

What others are saying