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Garlic Butter Steak & Mushroom Foil Pack Recipe

Indulge in the flavors of these garlic butter steak & mushroom foil packs. Juicy steak, savory mushrooms and potatoes all sealed in foil and cooked to perfection!

Steak, sliced mushrooms and baby yellow potatoes cooked in a foil packet with garlic butter and fresh parsley garnish.

Foil pack dinners make a hearty meal that is not only full of amazing flavor but also requires minimal clean-up.  Steak and potato foil packs are one of our go-to meals on a hot summer day!

Of course, foil pack meals are great any time of year but they are especially awesome for grilling season or to take on you next camping trip.

One of my favorite things to do in the spring is plan all of our summer trips and that often includes adding these buttery, garlic steak packets to our menu planning.

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We especially love individual foil packets because they make the best all in-one meal that is easy to serve in the great outdoors.  Serve this delicious steak with our foil packet loaded potatoes recipe or corn on the cob.

Steak, sliced mushrooms and baby yellow potatoes cooked in a foil packet with garlic butter and fresh parsley garnish.

Tips & Tricks

  • These steak & potato foil packets may be cooked in the oven or on the grill.  The directions in the recipe card below are for baking in the oven.  If you would prefer grilling, simply preheat the grill to 400 degrees and cook for 8-10 minutes.
  • The packets can be placed on a baking sheet to prevent them from leaking in the oven.
  • You can also cook them over the open fire on a grate over medium heat.  Use heavy-duty foil if you are worried about the aluminum tearing.
  • Raw potatoes take a while to cook, so if you are planning to put them into the packet like we do, be sure to pre cook them first.
  • ​Transfer any leftovers to an airtight container to keep in the fridge for a few days.
Close up of steak, sliced mushrooms and baby yellow potatoes cooked in a foil packet with garlic butter and fresh parsley garnish.

How do you fold a foil packet?

  • For the best results, start by pulling the top and bottom of the aluminum foil to meet in the center over the ingredients.
  • Fold the two edges together tightly along the entire length, a 1″ fold is ideal.
  • Finally, the easiest way to seal the ingredients in, is to roll up the ends of the foil to create a packet.
Steak, sliced mushrooms and baby yellow potatoes cooked in a foil packet with garlic butter and fresh parsley garnish.

The secret ingredient to making the most flavorful and tender steak is our homemade steak garlic butter sauce.  We like to use lots of garlic, fresh cloves are best!

Simply combine butter, garlic, chives and salt in a small bowl before adding to the top of the steaks. Plain, salted butter could also be used in this recipe but this homemade garlic butter kicks it up a notch!

Steak and mushroom foil pack ingredients in glass bowls.

Ingredients

The good news is that this recipe uses simple ingredients that the entire family is sure to love!

  • Top sirloin steak, cut into strips or 1-inch pieces
  • Baby yellow potatoes, halved
  • Tender mushrooms, sliced
  • Homemade garlic butter
  • Salt & pepper
  • Fresh parsley, garnish
Sliced mushrooms and cut potatoes on a sheet of foil.

Instructions

1. Preheat the oven to 400 degrees F.

2. Cut up the potatoes, place in a microwave safe large bowl and partially cook in the microwave for 3-4 minutes.

3. Cut the steak and slice the mushrooms.

Raw steak, sliced mushrooms and baby potatoes topped with garlic butter and parsley on a sheet of foil.

4. Divide the ingredients equally onto four sheets of foil (about 12” long).

5. Top with garlic steak butter and parsley.

6. Fold foil into a packet.

7. Place the foil packets directly onto the oven racks.

8. Cook for 10 minutes or until the steak reaches your desired level of doneness.

Steak, sliced mushrooms and baby yellow potatoes cooked in a foil packet with garlic butter and fresh parsley garnish.

An instant-read thermometer inserted into the center will read 130 degrees F for medium rare steak.  Adjust cooking time accordingly.

Steak, sliced mushrooms and baby yellow potatoes cooked in a foil packet with garlic butter and fresh parsley garnish.

More foil packet dinners

Looking for easy dinner ideas? Check out some our favorite foil packet meals!

Steak, sliced mushrooms and baby yellow potatoes cooked in a foil packet with garlic butter and fresh parsley garnish.

What to serve with steak foil packs?

Steak, sliced mushrooms and baby yellow potatoes cooked in a foil packet with garlic butter and fresh parsley garnish.

This easy dinner is always a crowd pleaser with our crew of teenage boys, so be sure to add these butter garlic herb steak foil packets to your next meal plan.

If you love this garlic butter steak and potato foil pack recipe, please give it a five star review and share it on Facebook or Pinterest so that others can enjoy it too.

Steak, sliced mushrooms and baby yellow potatoes cooked in a foil packet with garlic butter and fresh parsley garnish.

Steak & Mushroom Foil Packs

Indulge in the flavors of these garlic butter steak & mushroom foil packs. Juicy steak, savory mushrooms and potatoes all sealed in foil and cooked to perfection!
5 from 1 vote
Prep Time: 10 minutes
Cook Time: 10 minutes
Total Time: 20 minutes
Servings: 4
Author: Heather Painchaud
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Ingredients
 

  • 1 pound top sirloin steak cut into strips or 1-inch pieces
  • 2 cups baby yellow potatoes halved
  • 8 oz tender mushrooms sliced
  • 8 Tbsp garlic butter
  • Salt & pepper to taste
  • Fresh parsley garnish

Instructions

  • 1. Preheat the oven to 400 degrees F.
  • 2. Cut up the potatoes, place in a microwave safe large bowl and partially cook in the microwave for 3-4 minutes.
  • 3. Cut the steak and slice the mushrooms.
  • 4. Divide the ingredients equally onto four sheets of foil (about 12” long).
  • 5. Top with garlic steak butter and parsley.
  • 6. Fold foil into a packet.
  • 7. Place the foil packets directly onto the oven racks.
  • 8. Cook for 10 minutes or until the steak reaches your desired level of doneness.

Nutrition

Serving: 1g | Calories: 717kcal | Carbohydrates: 29g | Protein: 44g | Fat: 47g | Saturated Fat: 22g | Polyunsaturated Fat: 20g | Trans Fat: 1g | Cholesterol: 187mg | Sodium: 861mg | Fiber: 3g | Sugar: 1g
about heather

Hello, I’m Heather!

I'm an active mom of twin boys who is always looking for opportunities to inspire creativity through fun crafts, do-it-yourself projects and delicious recipes. This blog has been an integral part of supporting my little family and I am so grateful to have you become a part of our journey! Let's create together... Read more...

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Can’t wait to try it 😋 🤟 and happy birthday Heather