INGREDIENTS
•
1 head garlic, top sliced off
•
1 tsp. plus 2 tbsp. extra-virgin olive oil, divided
•
4 chicken breasts, pounded 1/2" thick
•
kosher salt
•
Freshly ground black pepper
•
4 oz. cremini mushrooms, sliced
•
2 tbsp. unsalted butter, divided
•
1/4 c. white wine
•
3/4 c. chicken broth
•
2-3 sprigs fresh rosemary
•
5 oz. baby spinach
•
Juice of 1/2 lemon
•
Mashed potatoes, for serving