Get ready to take your grilled cheese to the next level with this gourmet recipe featuring creamy Gouda, roasted mushrooms, and sweet onions. This sandwich is a flavor-packed delight that’s easy to make. Discover the step-by-step instructions to achieve that perfect melt and crispy crust. Don't miss out on tips to customize your grilled cheese and make leftovers last longer.
4 slices of sourdough bread
2 cups shredded Gouda cheese
1 cup button mushrooms, sliced
1 medium onion, thinly sliced
2 tablespoons olive oil
1 tablespoon butter
1 teaspoon garlic powder
Salt and pepper to taste
Fresh thyme leaves for garnish (optional)