One 8-ounce package baby portobello mushrooms, sliced
One 16-ounce package frozen peas
1/2 teaspoon salt
1/2 teaspoon ground pepper
In a large skillet, melt the butter over medium heat. Add the onions and mushrooms. Cook, stirring occasionally, for 4 minutes. Stir in the peas and 1/2 cup water. Cook, stirring frequently, until the peas are tender, 8 to 10 minutes. Stir in the salt and pepper.