Grilled Mushrooms and Onions in Foil


Onions and mushrooms are sliced, seasoned, and wrapped inside a durable packet of foil, crimped to seal, and placed on the grill. Super easy with big, bold flavor. A fantastic topper for steaks, potatoes, etc.

Prep Time:
10 mins
Cook Time:
45 mins
Total Time:
55 mins
2 cups


  • aluminum foil

  • 2 large white onions, sliced into 1/4-inch rings

  • 8 ounces baby bella mushrooms, sliced

  • 2 cloves garlic, thinly sliced

  • 4 tablespoons butter, cut into 4 pieces

  • 5 tablespoons steak seasoning (such as Dale's®)


  1. Preheat an outdoor grill for medium heat.

  2. Fold an 18-inch wide piece of aluminum foil so it is square.

  3. Place onions, mushrooms, and garlic in the middle of the foil. Arrange butter pieces on top of vegetables and drizzle with steak seasoning. Bring 4 corners of the foil together in the center, and crimp any open spaces to seal packet.

  4. Place the foil packet on the preheated grill and cook until vegetables are tender, about 45 minutes. Remove from grill, open packet carefully, and serve.

Cook's Note:

This can be cooked in the oven, but your guests will be more impressed when they learn it came off the grill.

Nutrition Facts (per serving)

166 Calories
12g Fat
14g Carbs
3g Protein
Nutrition Facts
Servings Per Recipe 4
Calories 166
% Daily Value *
Total Fat 12g 15%
Saturated Fat 7g 37%
Cholesterol 31mg 10%
Sodium 3529mg 153%
Total Carbohydrate 14g 5%
Dietary Fiber 3g 9%
Total Sugars 4g
Protein 3g
Vitamin C 7mg 36%
Calcium 99mg 8%
Iron 1mg 6%
Potassium 470mg 10%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.

(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.

You’ll Also Love