Preheat oven to 450 F;
Line baking sheet with aluminum foil

Cook pasta according to instructions, add sugar snap peas 3 minutes before finished. Drain

Mix all other veggies (squash, carrots, bell peppers and broccoli) with 2 tsp olive oil, salt, pepper, lemon juice, and Italian seasoning. Place on prepared baking sheet and roast until tender ~15min.

Saute onion in remaining oil until tender in a large skillet
.

Add pasta, basil, parsley and balsamic vinegar. Mix and cook until heated through, ~3-5 min.

In a large bowl mix roasted veggies with pasta mixture and sprinkle with Parmesan cheese.