Spaghetti squash with chunky tomato sauce

Cut spaghetti squash lengthwise in half. Remove seeds. Place squash in 12×8-inch microwavable dish. Cover with vented plastic wrap. Microwave on high 9 minutes or until squash separates easily into strands when tested with fork. Cut each squash half lengthwise in half; separate strands with fork.

Heat oil in large skillet over medium-high heat. Add mushrooms, onion, and bell pepper; cook and stir 7 minutes or until vegetables are tender.

Stir tomatoes, pasta sauce, water, oregano, salt, if desired, and black pepper into skillet. Cover bring to a simmer; reduce heat and simmer 5 minutes. Stir sausage pieces into sauce.

Divide squash evenly among 4 plates. Spoon sauce over squash; sprinkle with parsley.