How to Make It
Light a grill or preheat a grill pan. In a pot of boiling salted water, cook the orecchiette until al dente. Drain the pasta, rinse under cold water and drain well. Transfer the orecchiette to a large bowl.
Meanwhile, brush the asparagus, zucchini and eggplant with 2 tablespoons of the olive oil and season with salt and pepper. Grill the vegetables over moderately high heat: turn the asparagus several times, until crisp-tender and charred, about 2 minutes; turn the zucchini once, until tender and charred, about 3 minutes; turn the eggplant once, until tender and charred, about 5 minutes.
Transfer the grilled vegetables to a work surface. Cut the asparagus into 1-inch lengths. Cut the zucchini crosswise into 1/2-inch pieces. Halve the eggplant slices lengthwise, then cut them crosswise into 1/2-inch pieces. Add the grilled vegetables to the orecchiette.
In a small bowl, whisk the lemon juice with the shallot and the remaining 5 tablespoons of olive oil. Pour the dressing over the pasta and toss to coat. Add the feta cheese, parsley and olives, season with salt and pepper and toss again, then serve.