Farfalle with Roast Chicken, Spring Veggies and Parmesan

Ingredients

• 1 500 g pkg farfalle pasta
• 1 tbsp olive oil
• 1 cup red onion , sliced
• 1 tbsp garlic , chopped
• 2 cups chicken broth , (low sodium or homemade)
• 1 lb asparagus
• 1 cup frozen green peas
• 2 cups leftover roast chicken , cut into bite-sized pieces
• 1 tsp lemon zest , grated
• 3/4 cup Parmean , grated
• 1/4 cup packed basil leaves
• salt
• black pepper