Preheat oven to 400 degrees. Chop mushrooms into quarters, slice zucchini into ½ pieces and cut red onion into wedges. Toss together mushrooms, zucchini, onions and tomatoes with olive oil, garlic, salt, red pepper flakes and oregano then place on a baking sheet pan.

Place in preheated oven and roast for 20-25 minutes.

Bring a pot of water to boil then add pasta. Cook pasta for 10-12 minutes then drain.

Remove vegetables from the oven and toss with cooked pasta and chopped parsley. Serve immediately.