Gnocchi with Roasted Cauliflower and Pan-Seared Chicken

medium head of cauliflower, broken into florets

olive oil, divided

head of garlic, end sliced off (exposing cloves), drizzled with a tsp of oil and wrapped in a small square of foil

package of boneless, skinless chicken thighs

dried Italian seasoning

package of dried gnocchi

butter

chicken stock

lemon

pine nuts, lightly toasted

fresh parsley

freshly grated parmesan cheese

salt and pepper