Zest the lemon into a small bowl. Add oregano, thyme, 1/2 tsp sea salt, 1/2 tsp pepper, 1 tsp minced garlic. Mix to combine.
Squeeze half the lemon over the chicken and then cover chicken tenders with the lemon zest rub. Move chicken to large sheet pan lined in foil (or a baking stone).
Toss green beans with 1 tsp olive oil, 1/2 tsp sea salt and 1/2 tsp black pepper. Move green beans to sheet pan. Bake for 15 to 18 minutes.