A Little Slice of Heaven

1 lb. white mushrooms, sliced or cut into quarters
1 red onions, sliced
1/2 teaspoon black pepper
1/2 teaspoon salt
1/2 teaspoon dried thyme leaves or 1 tablespoon fresh, chopped thyme
1/4 cup olive oil
3 tablespoons salted butter
1/4 cup grated Parmesan cheese

Pre-heat oven to 400 degrees.
Place the mushrooms and red onions in a medium mixing bowl. Add the olive oil and toss to coat. Add the salt, pepper, and thyme, tossing again to combine. Pour the mushroom mixture onto a baking sheet and roast in pre-heated oven for 15 to 18 minutes or until golden brown and cooked through.
Meanwhile, in a small saucepan or skillet, over medium-high heat, add the butter. Cook, stirring frequently, until browned, about 3 to 5 minutes.
Place mushroom mixture onto a serving platter. Drizzle with the browned butter, tossing to coat. Sprinkle with Parmesan and serve immediately.