Heat a large 11-by-13-inch roasting pan set over 2 burners on medium heat. Once hot, add the olive oil. Add the garlic, lemon zest, lemon juice, honey, salt, and pepper, and stir to combine. Add the greens and saute for 4 to 5 minutes, tossing continually. Add the red pepper flakes and the sesame seeds. Toss to combine. Adjust seasoning, if needed. Serve immediately.