This quick and easy mushroom spaghetti recipe only requires everyday ingredients – ground beef or grilled chicken, tomato sauce, mushrooms, and spaghetti. Serves 2 Ingredients for Mushroom Spaghetti with Tomato Sauce Instructions Bring a pot of water to boil. Add 2 servings of spaghetti. Add a pinch of salt into the water. Cook uncovered for about 15 minutes. Slice the onion and heat up cooking oil in a non-sticky pan over medium heat. Add the onion slices and ground beef and stir until the beef changes to dark brown. Add sliced mushrooms and cook for another 3-5 min. Add 1…