Savory Philly Cheesesteak Stuffed Portobello Mushrooms Recipe

Juicy portobello mushrooms become the perfect canvas for a classic Philly cheesesteak stuffed with mouthwatering flavors.

These hearty mushroom caps capture all the deliciousness of the iconic sandwich in a low-carb, protein-packed bite.

Tender strips of beef sizzle with caramelized onions and bell peppers, creating a rich and savory filling.

Melted provolone cheese adds a creamy texture that brings each bite to life.

The robust mushroom base provides a sturdy foundation for the intense meaty goodness inside.

Packed with robust Philadelphia-inspired flavors, these stuffed portobellos offer a delectable twist on a beloved sandwich.

You’ll love how this recipe transforms a traditional comfort food into a lighter, more veggie-forward meal that doesn’t compromise on taste.

Quick Recipe Overview

Prep Time: 15 minutes

Cook Time: 20 minutes

Total Time: 35 minutes

Calories: 280 kcal

Servings: 5

Ingredients to Make Philly Cheesesteak Stuffed Mushrooms

• Sirloin Steak: Lean, tender cut that delivers rich, beefy flavor and serves as the star protein of the dish.
• Portobello Mushrooms: Hearty, meaty vegetable that acts as a low-carb vessel for stuffing, providing a robust texture and earthy undertones.

• Sour Cream, Mayonnaise, Cream Cheese: Creamy ingredients that blend together to create a smooth, luxurious filling with tangy depth.
• Provolone Cheese: Melty, mild cheese that adds richness and connects all the flavors in the stuffed mushrooms.

• Onion, Green Pepper: Vibrant vegetables that provide crunch, sweetness, and a classic Philly cheesesteak flavor profile.
• Kosher Salt, Black Pepper: Essential seasonings that enhance and balance the overall taste of the dish, bringing out the natural flavors of the ingredients.
• Cooking Spray: Helps prevent sticking and promotes even cooking, ensuring a perfect golden finish.

Equipment List for Philly Cheesesteak Mushroom Prep

• Baking sheet: Essential for roasting mushrooms and holding the stuffed portobello during baking.
• Large skillet: Perfect for searing steak and sautéing onions and peppers with even heat distribution.
• Medium bowl: Great for mixing steak, vegetables, and cheeses into a delicious stuffing blend.
• Cooking spray: Helps prevent sticking and adds a light oil coating to cooking surfaces.
• Chef's knife: Needed for slicing steak thinly and preparing vegetables with precision.
• Measuring spoons: Useful for adding precise amounts of salt and seasonings.
• Tongs: Helpful for flipping steak during searing and handling hot ingredients safely.

Steps to Assemble Philly Cheesesteak Mushrooms

• Mushroom Canvas

Select plump portobello mushrooms as your delicious foundation. These large, meaty fungi create a perfect base for a hearty meal that transforms traditional cheesesteak flavors.

• Flavor Preparation

Remove stems and scrape out inner gills to create a clean, spacious vessel for your filling. Season mushroom exteriors with a light touch of salt and pepper to enhance natural earthiness.

• Protein Magic

Quickly sear sirloin steak in a hot skillet, ensuring a beautiful caramelized exterior while maintaining tender interior. Slice meat into thin, succulent strips that will melt in your mouth.

• Vegetable Symphony

Sauté onions and green peppers until they become soft and translucent, releasing sweet and aromatic flavors that complement the robust beef perfectly.

• Creamy Fusion

Mix cooked steak, sautéed vegetables, and a blend of creamy cheeses to create a luxurious, indulgent filling that promises to elevate your mushroom experience.

• Baking Transformation

Generously stuff mushroom caps with the prepared mixture, then bake until cheese becomes golden and bubbly and mushrooms turn tender and juicy. The result is a low-carb, flavor-packed meal that satisfies every craving.

Tasty Variations for Philly Cheesesteak Mushrooms

• Smart Stuffing Strategy: Remove mushroom gills carefully to maximize space for that mouthwatering cheesy filling. Extra room means more deliciousness in every bite.
• Meat Temperature Trick: Let steak rest for 3-5 minutes after searing to lock in those incredible juices. Slicing against the grain ensures tender, easy-to-eat meat strips that blend perfectly with creamy cheese.
• Cheese Swap Adventure: Experiment with different cheese varieties like provolone, Swiss, or pepper jack for unique flavor profiles. Each cheese brings its own personality to this classic Philly-inspired dish.
• Low-Carb Hero Hack: Replace high-carb bread with portobello mushrooms for a protein-packed, nutritious alternative. These meaty mushrooms provide a satisfying base that keeps the classic cheesesteak spirit alive while being diet-friendly.
• Veggie Lover's Twist: Add extra vegetables like sliced mushroom stems, spinach, or diced jalapeños to boost nutrition and create more complex flavor layers. These additions keep the dish exciting and provide extra nutrients without compromising the original recipe's essence.

How to Serve Stuffed Portobello Cheesesteaks

• Flavor Fusion Party: Serve these stuffed mushrooms alongside a crisp garden salad with zesty vinaigrette for a balanced meal that combines protein and fresh greens.
• Tailgate Touchdown Platter: Create a shareable appetizer spread by arranging the mushrooms on a large platter with extra dipping sauces like spicy sriracha mayo or tangy ranch for game day gatherings.
• Low-Carb Comfort Feast: Pair the mushrooms with roasted cauliflower rice or a light coleslaw to keep the meal low-carb while maintaining maximum flavor and satisfaction.
• Brunch Brilliance: Transform this recipe into a weekend brunch star by adding a poached egg on top and serving with fresh fruit for a gourmet morning experience that impresses breakfast lovers.

Storage and Reheating Instructions for Cheesesteaks

• Smart Storage Solutions: Transfer leftover stuffed mushrooms to an airtight container. Refrigerate within two hours of cooking to maintain freshness and prevent bacterial growth.
• Fridge Freshness Window: Enjoy your delicious mushrooms within 3-4 days when stored properly in the refrigerator. Always check for any signs of spoilage before consuming.
• Reheating Magic: Warm individual portions in the microwave for 45-60 seconds or reheat in a preheated oven at 350°F for 10-12 minutes. Cover with foil to prevent moisture loss and maintain the delicious texture.
• Freezing Strategy: Wrap individual mushrooms tightly in plastic wrap, then place in a freezer-safe container. Freeze for up to 1 month. Thaw overnight in the refrigerator before reheating to preserve the best flavor and texture.

Hearty Philly Cheesesteak Stuffed Portobello Mushrooms Recipe

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4.6 from 34 reviews

• Total Time: 35 minutes
• Yield: 5 1x

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Description

Savory Philly cheesesteak stuffed portobello mushrooms combine classic sandwich flavors with earthy mushroom caps. Melted provolone, tender beef, and caramelized onions create a low-carb meal you’ll crave.

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Ingredients

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• 6 oz (170 g) thin sliced sirloin steaks
• 3 oz (85 g) shredded mild provolone cheese, or cheese of choice
• 4 medium portobello mushrooms, with no cracks
• ¾ cup (180 mL) diced onion
• ¾ cup (180 mL) diced green pepper
• 2 oz (57 g) light cream cheese, softened
• ¼ cup (60 mL) light sour cream
• 2 tbsps light mayonnaise
• 1/8 tsp kosher salt, additional to taste
• Black pepper to taste
• Cooking spray

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Instructions

1. Preparation: Preheat oven to 400°F and lightly oil a baking sheet to prevent mushroom adhesion during roasting.
2. Mushroom Preparation: Carefully remove stems and gills from portobello mushrooms, creating spacious cavities. Brush mushroom tops with oil and season with salt and pepper to enhance roasting potential.
3. Protein Treatment: Season sirloin steak, then sear in a scorching skillet for 1-2 minutes per side until perfectly cooked. Slice meat thinly and reserve for further use.
4. Vegetable Transformation: In the same skillet, reduce heat and sauté onions and green peppers until soft and translucent, developing a rich flavor foundation.
5. Mixture Creation: Combine thinly sliced steak, caramelized onions, sautéed peppers, sour cream, mayonnaise, cream cheese, and shredded cheese in a mixing bowl, blending into a creamy, unified filling.
6. Stuffing and Roasting: Distribute filling evenly into mushroom caps, then place on prepared baking sheet. Roast in the oven for 20 minutes until cheese melts completely and mushrooms become tender.

Notes

• Mushroom Prep Tip: Remove stems and gills carefully to create maximum space for delicious filling, ensuring even cooking and better texture.
• Meat Searing Technique: Use high heat for quick 1-2 minute searing, which locks in steak’s juices and creates a beautiful caramelized exterior.
• Cheese Melting Strategy: Distribute filling evenly to guarantee consistent melting and prevent dry or overly saturated spots in the stuffed mushrooms.
• Temperature Control: Maintain 400°F oven temperature to achieve perfect golden-brown tops and ensure mushrooms become tender without becoming watery.

• Prep Time: 15 minutes
• Cook Time: 20 minutes
• Category: Lunch, Dinner, Appetizer
• Method: Baking
• Cuisine: American

Nutrition

• Serving Size: 5
• Calories: 280
• Sugar: 3 g
• Sodium: 640 mg
• Fat: 15 g
• Saturated Fat: 6 g
• Unsaturated Fat: 7 g
• Trans Fat: 0 g
• Carbohydrates: 10 g
• Fiber: 2 g
• Protein: 24 g
• Cholesterol: 60 mg