Toss grilled vegetables, penne pasta, and fresh basil for a delicious vegetarian pasta dinner.
Toss together first 8 ingredients in a large bowl.
Grill vegetables, covered with grill lid, over medium-high heat (350° to 400°), turning occasionally, 6 minutes or until they are tender.
Cut zucchini and squash halves into thin slices, and place in a large bowl. Add remaining grilled vegetables, pasta, and basil, tossing gently; sprinkle with cheese.
To hold the onions together on the grill, insert a wooden pick through each slice.
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