Prepare pan: If desired, line pan with foil for easy clean up. Note- I like to use an extra large sheet pan for this recipe, but you can also make it on a standard sheet pan (which is what I'm using in the photos). The more crowded your food, the more moisture in the pan so it tends to have a bit more liquid. Sometimes depending on the size of your vegetables, this can get a bit crowded on a single standard pan, but if that's what you've got, it will work great!
Place cut vegetables on the prepared baking sheet. You can include your small tomatoes whole, or if you have the time, I like to cut them in half and press the seeds and pulp into the sink just to get rid of a little more liquid.
Pat chicken thighs dry with paper towels. Use a clean pair of kitchen sheers to trim off any excess pieces of large fat (no need to remove ALL fat). Slice chicken into ½-inch slices and add it to the vegetables on the pan.
Drizzle with 4 tablespoons olive oil. Sprinkle on the salt, lemon pepper, oregano, basil, garlic, onion, and rosemary if using.
Toss to evenly distribute all oil and spices over chicken and vegetables. *I use food-safe gloves and do this with my hands massaging everything together.
Place in oven and roast for 20 minutes. Use a spatula to toss mixture and then return to oven for an additional 15 minutes. Finally, turn on the broiler and cook (watching carefully) until vegetables are slightly browned and caramelized and chicken has an internal temperature of 165 degrees or more.
Remove pan from oven and immediately toss with 1/3 cup feta cheese and a squeeze of fresh lemon juice. Add additional salt if needed. Serve in a grain bowl or in a wrap with desired condiments.
Notes
Some topping options!
Tzatziki - tzatziki is a simple condiment sauce made from yogurt, cucumber, and some spices. It's super easy to make at home, or you can find some ready-made versions. The one pictured is fantastic and I buy it at Costco! If you don't use any other condiment, I recommend at the very least having this one.
Feta - crumbled feta adds both a creaminess and a tanginess
Lemon wedges - squeeze on a little fresh lemon juice before serving.
Hummus - I love a little smear of hummus on a flatbread or a dollop in a bowl.
Greek Salsa - If you want something cold and crunchy, this greek inspired salsa is a great choice.