Crockpot roast vote now Main DishVery Easy9 h 15 m Send this recipe to a friend Print this page Ask a question to the author Post your photo of this recipe Ingredients 4 2 onions sliced 1/2 pound button mushrooms 1 cup vegetable soup (organic) 1 tablespoon maple syrup 2 teaspoons onion powder 1 teaspoon garlic powder salt black pepper You could use onion soup mix in place of the spices. 10 fingerling potatoes, added after beef is taken out of crockpot