Trim ends from zucchini and cut in half lengthwise

Cut eggplant in half lengthwise

Peel onion and cut in half crosswise

Cut yellow pepper in sections and remove seeds and membrane

Cut tomatoes in half crosswise and squeeze out seeds

Coarsely chop

Peel garlic and mince

Remove leaves from oregano stems and mince

Stir together the olive oil, garlic and oregano

Brush some of the oil on all the vegetables except the tomatoes and grill for 5 to 6 minutes per side or until very tender

Remove to a cutting board and let cool

Coarsely chop vegetables and add to pasta with the remaining oil mixture, balsamic vinegar, tomatoes and feta cheese

Toss well.