Cheesy Spinach-Stuffed Mushrooms with Garlic Butter
A rich and satisfying keto appetizer featuring large mushrooms stuffed with a blend of spinach, cream cheese, and sharp cheddar, baked in garlic butter. This American-inspired keto recipe (low carb, vegetarian), ready in about 40 minutes, pairs large white mushrooms, fresh spinach, cream cheese for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 200 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 caps, stems removed large white mushrooms
- 3 cups chopped fresh spinach
- 4 oz softened cream cheese
- 1/2 cup shredded sharp cheddar cheese
- 3 cloves minced garlic
- 3 tbsp unsalted butter
- 1/2 tsp salt
- 1/4 tsp black pepper
- 2 tbsp grated parmesan cheese
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Instructions
- Step 1: Preheat oven to 375°F. In a skillet over medium heat, melt 3 tbsp unsalted butter and add 3 minced garlic cloves, cooking for 1 minute until fragrant.
- Step 2: Add 3 cups chopped fresh spinach to the skillet and sauté for 3-4 minutes until wilted. Remove from heat and transfer spinach to a bowl to cool slightly.
- Step 3: In the bowl with spinach, mix 4 oz softened cream cheese, 1/2 cup shredded sharp cheddar cheese, 1/2 tsp salt, and 1/4 tsp black pepper until well combined.
- Step 4: Arrange 12 large mushroom caps stem side up on a baking sheet. Spoon the cheese and spinach mixture evenly into each mushroom cap, pressing lightly to fill.
- Step 5: Sprinkle 2 tbsp grated parmesan cheese over the stuffed mushrooms and bake for 20 minutes until mushrooms are tender and cheese filling is golden and bubbling. Serve warm.








