Sheet Pan Chicken with Garden Vegetables and Everything but the Bagel Sesame Seasoning Recipe

I realize I am a bit late to this party.  For a while I thought Martha Stewart had given up cooking any other way than by using a sheet pan. She created 17 sheet pan suppers for Pork alone. She made everything from Pizza to Vegetable Quinoa Tahini bowls on a sheet pan. It’s not that I completely resisted the sheet pan.  In fact, two of my favorite recipes on Chewing The Fat use the technique.  (Their links follow this recipe.) In putting this recipe together, I thought why not use a terrifically colorful group of vegetables: Red Onions, a whole sleeve of those multi-colored sweet peppers, Zucchini and Broccoli to bring green into the picture and then finally for some juicy red bites, cherry tomatoes cut in half.  As to the chicken, I used…