Roast Chicken with Rosemary and Lemon

Name: Roast Chicken with Rosemary and Lemon
Prep time: 10 min
Cook time: 1 h
Total time: 1 h 10 min
Cuisine: American
Ingredients: 1 (3 lb) chicken, washed and dried, fat removed; 1/2 onion (chopped in large chunks); 2 cloves garlic (smashed); 1 lemon (halved); 3 sprigs fresh rosemary; 1 tbsp dried herbes de Provence (or dried rosemary); kosher salt and fresh pepper