This has all the garlicky, lemony flavors of classic shrimp scampi, but is cooked on a sheet pan instead of a skillet. This allows the lemon to char and caramelize, and gives the shrimp a condensed, deep flavor from roasting at high heat. Serve it with crusty bread for dipping, or over pasta to absorb the sauce, and with more lemon juice and red pepper flakes showered on top for pizzazz.