To make vinaigrette, mash garlic together with salt to form paste. Add lemon juice, shallots and 3 tablespoons olive oil and whisk together. Stir in cumin and cayenne pepper.
To make eggplant, heat grill to medium. Brush eggplant on both sides with olive oil and grill for 3-4 minutes per side. Remove from heat, toss with vinaigrette, feta, and herbs.
Serve warm.
Recipe by Things I Made Today at https://www.thingsimadetoday.com/2013/09/06/grilled-eggplant-with-cumin-vinaigrette-and-feta/