Prime Rib Philly Stuffed Mushrooms Easy Tasty Stuffed Mushrooms

Jump to Recipe Tasty prime rib Philly stuffed mushrooms are a match made in heaven combining your amazing prime rib leftovers and portobello mushrooms! Saute some onions and heat the bite-size pieces of leftover prime rib, roast beef, or steak, then bake to perfection! These flavorful prime rib Philly stuffed mushrooms are the perfect combination of earthy portobello mushrooms and rich prime rib! These amazingly tasty stuffed mushrooms are layers of flavors that add up to make a crowd-pleasing meal! Giant, stuffed portobello mushrooms are one of my family’s favorite easy dinners or appetizers! The combination of one of our fave meals with tender, perfectly medium-rare leftover prime rib is not to be missed! The roasted mushrooms, hearty prime rib, and melted cheese pile up to make the best stuffed mushrooms ever! It’s an easy-to-make meal that’s also quick but delivers BIG flavor!

Jump to:🥘 Ingredients 🔪 Step-By-Step Instructions 💭 Angela’s Tips & Recipe Notes 🥩 More Great Prime Rib Recipes 📋 Recipe

🥘 Ingredients 4 large portobello mushrooms (cleaned, stemmed, and gills removed)1 tablespoon olive oil (extra virgin - divided into 2 portions ½ tablespoon each)each, salt & pepper (to taste)½ cup yellow onion (1 small onion, sliced)½ pound prime rib roast (sliced or cut into bite-size chunks)1 cups mozzarella cheese (grated - or use provolone) Be sure to see the free printable recipe card below for ingredients, exact amounts & instructions with tips! 🔪 Step-By-Step Instructions Prep. Preheat your oven to 400°F (205°C), line a baking sheet with parchment paper, and lightly coat the parchment paper with nonstick cooking spray or oil.Season. Place your cleaned portobello mushrooms onto the prepared baking sheet then coat the inside with the first ½ tablespoon of olive oil and season with salt and pepper.Saute. In a large skillet or frying pan heat the second ½ tablespoon portion of olive oil to medium-high heat until just beginning to smoke. Add ½ cup sliced yellow onions and saute until starting to get tender, about 2 minutes. Add the ½ pound of sliced prime rib leftovers and toss with onions. Continue to saute until warmed and softened, about 2 additional minutes.Cook. Portion the prime rib and sauteed onions into each prepared mushroom then top with 1 cup shredded mozzarella (or provolone cheese). Bake at 400°F (205°C) for 20-25 minutes or until the mushrooms are softened and the cheese is fully melted. Serve. Once done, sprinkle with chopped parsley and serve immediately. 💭 Angela’s Tips & Recipe Notes Use a towel to clean your mushrooms rather than rinsing with water.Gently remove the stem and gills to avoid breaking the mushrooms. 🥩 More Great Prime Rib Recipes

Prime Rib Philly Cheesesteak Stuffed PeppersPrime Rib StroganoffLeftover Prime Rib TaquitosPrime Rib Beef & Barley SoupBreakfast Burritos (with Leftover Prime Rib)

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📋 Recipe

Print Recipe Leave A Comment Love This Recipe?Click On A Star To Rate It! 5 from 9 reviews

Prime Rib Philly Stuffed Mushrooms

Tasty prime rib Philly stuffed mushrooms are a match made in heaven combining your amazing prime rib leftovers and portobello mushrooms! Saute some onions and heat the bite-size pieces of leftover prime rib, roast beef, or steak, then bake to perfection!

Author | Angela

Servings: 4 servings Calories: 309kcal Prep 5 minutes Cooking 25 minutes Total Time 30 minutes

Pin Recipe Share on Facebook Ingredients US CustomaryMetric1x2x3x▢ 4 large portobello mushrooms (cleaned, stemmed, and gills removed)▢ 1 tablespoon olive oil (extra virgin - divided into 2 portions ½ tablespoon each)▢ each, salt & pepper (to taste)▢ ½ cup yellow onion (1 small onion, sliced)▢ ½ pound prime rib roast (sliced or cut into bite-size chunks)▢ 1 cups mozzarella cheese (grated - or use provolone)

InstructionsPreheat your oven to 400°F (205°C), line a baking sheet with parchment paper, and lightly coat the parchment paper with nonstick cooking spray or oil.Place your cleaned portobello mushrooms onto the prepared baking sheet then coat the inside with the first ½ tablespoon of olive oil and season with salt and pepper.4 large portobello mushrooms, 1 tablespoon olive oil, each, salt & pepperIn a large skillet or frying pan heat the second ½ tablespoon portion of olive oil to medium-high heat until just beginning to smoke. Add the onions and saute until starting to get tender, about 2 minutes. Add the sliced prime rib leftovers and toss with onions. Continue to saute until warmed and softened, about 2 additional minutes.1 tablespoon olive oil, ½ pound prime rib roast, ½ cup yellow onionPortion the prime rib and onions into each prepared mushroom then top with shredded mozzarella (or provolone cheese). Bake at 400°F (205°C) for 20-25 minutes or until the mushrooms are softened and the cheese is fully melted. 1 cups mozzarella cheeseOnce done, sprinkle with chopped parsley and serve immediately. NutritionCalories: 309kcal (15%) | Carbohydrates: 5g (2%) | Protein: 16g (32%) | Fat: 25g (38%) | Saturated Fat: 11g (69%) | Polyunsaturated Fat: 1g | Monounsaturated Fat: 11g | Trans Fat: 1g | Cholesterol: 56mg (19%) | Sodium: 210mg (9%) | Potassium: 476mg (14%) | Fiber: 1g (4%) | Sugar: 3g (3%) | Vitamin A: 189IU (4%) | Vitamin C: 1mg (1%) | Calcium: 152mg (15%) | Iron: 1mg (6%) Did you try this recipe? Rate it below!I can’t wait to see your results! Mention @bake_it_with_love or tag #bake_it_with_love! leftover prime rib roast, portobello mushrooms, prime rib, Prime Rib Philly Stuffed Mushrooms Course Appetizers, Beef Dishes, Leftover Ideas, Main DishCuisine AmericanAngela @ BakeItWithLove.comAngela is an at home chef that developed a passion for all things cooking and baking at a young age in her Grandma’s kitchen. After many years in the food service industry, she now enjoys sharing all of her family favorite recipes and creating tasty dinner and amazing dessert recipes here at Bake It With Love! bakeitwithlove.com/about/

These amazingly tasty stuffed mushrooms are layers of flavors that add up to make a crowd-pleasing meal!

Giant, stuffed portobello mushrooms are one of my family’s favorite easy dinners or appetizers! The combination of one of our fave meals with tender, perfectly medium-rare leftover prime rib is not to be missed!

The roasted mushrooms, hearty prime rib, and melted cheese pile up to make the best stuffed mushrooms ever! It’s an easy-to-make meal that’s also quick but delivers BIG flavor!

🥘 Ingredients

4 large portobello mushrooms (cleaned, stemmed, and gills removed)1 tablespoon olive oil (extra virgin - divided into 2 portions ½ tablespoon each)each, salt & pepper (to taste)½ cup yellow onion (1 small onion, sliced)½ pound prime rib roast (sliced or cut into bite-size chunks)1 cups mozzarella cheese (grated - or use provolone)

Be sure to see the free printable recipe card below for ingredients, exact amounts & instructions with tips!

🔪 Step-By-Step Instructions

Prep. Preheat your oven to 400°F (205°C), line a baking sheet with parchment paper, and lightly coat the parchment paper with nonstick cooking spray or oil.Season. Place your cleaned portobello mushrooms onto the prepared baking sheet then coat the inside with the first ½ tablespoon of olive oil and season with salt and pepper.Saute. In a large skillet or frying pan heat the second ½ tablespoon portion of olive oil to medium-high heat until just beginning to smoke. Add ½ cup sliced yellow onions and saute until starting to get tender, about 2 minutes. Add the ½ pound of sliced prime rib leftovers and toss with onions. Continue to saute until warmed and softened, about 2 additional minutes.Cook. Portion the prime rib and sauteed onions into each prepared mushroom then top with 1 cup shredded mozzarella (or provolone cheese). Bake at 400°F (205°C) for 20-25 minutes or until the mushrooms are softened and the cheese is fully melted. Serve. Once done, sprinkle with chopped parsley and serve immediately.

💭 Angela’s Tips & Recipe Notes

Use a towel to clean your mushrooms rather than rinsing with water.Gently remove the stem and gills to avoid breaking the mushrooms.

🥩 More Great Prime Rib Recipes

Prime Rib Philly Cheesesteak Stuffed PeppersPrime Rib StroganoffLeftover Prime Rib TaquitosPrime Rib Beef & Barley SoupBreakfast Burritos (with Leftover Prime Rib)

📋 Recipe

Print Recipe Leave A Comment Love This Recipe?Click On A Star To Rate It! 5 from 9 reviews

Prime Rib Philly Stuffed Mushrooms

Author | Angela

Servings: 4 servings Calories: 309kcal Prep 5 minutes Cooking 25 minutes Total Time 30 minutes

Angela @ BakeItWithLove.comAngela is an at home chef that developed a passion for all things cooking and baking at a young age in her Grandma’s kitchen. After many years in the food service industry, she now enjoys sharing all of her family favorite recipes and creating tasty dinner and amazing dessert recipes here at Bake It With Love! bakeitwithlove.com/about/

Love This Recipe?Click On A Star To Rate It!

5 from 9 reviews