Preheat a grill. Skewer
, with zucchini slices ribboned in between each piece. Stir together the olive oil
, pepper flakes, mint
, and salt in a glass casserole
. Lay in the skewers, cover, and refrigerate for a few hours to marinate, turning once or thrice. Cook on the grill
until the shrimp are pink and the zucchini
is striped with grill marks, 3 to 5 minutes per side.