Crispy Beef & Blue Cheese Stuffed Portobellos

By AislePrompt Editorial · Published 2026-04-04 · Updated 2026-04-04

Savory beef patties stuffed with tangy blue cheese and roasted in the oven for a crispy, keto-friendly main course. This American-inspired beef recipe (keto, low-carb), ready in about 35 minutes, pairs ground beef, portobello mushrooms, blue cheese crumbles for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 420 calories and feeds 4, so it slots cleanly into a low-carb week and pairs well with cauliflower rice or roasted green vegetables. 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

• 12 oz ground beef
• 4 large portobello mushrooms
• 1/2 cup blue cheese crumbles
• 1 tbsp olive oil
• 1/2 tsp garlic powder
• 1/4 tsp dried thyme
• 1/4 tsp salt
• 1/8 tsp black pepper

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Instructions

1. Step 1: Preheat oven to 400°F (200°C). Brush the portobello mushroom caps (remove stems) with 1 tbsp olive oil and season with 1/4 tsp salt and 1/8 tsp black pepper, then place them on a baking sheet.
2. Step 2: In a bowl, mix 12 oz ground beef, 1/2 tsp garlic powder, 1/4 tsp dried thyme, and 1/4 tsp salt. Divide into 4 equal portions and press each into a patty. Place 2 tbsp blue cheese crumbles on each patty, then fold the beef over to enclose the cheese.
3. Step 3: Place the stuffed patties on the prepared mushrooms, seam-side down. Roast for 18-20 minutes until the beef is cooked through and the edges are crispy, checking with a thermometer to reach 160°F (71°C).