Classic Chicken Pot Pie

Name: Classic Chicken Pot Pie
Ingredients: 1 sheet frozen (thawed) puff pastry; 1 tbsp. oil; 1 large onion, chopped and cooked 5 min.; 1 lb. Yukon gold potatoes, chopped in 1/2 pieces; 1 c. chicken broth; 1/2 tsp. salt; 1 tbsp. cornstarch; 1/2 c. half-and-half; 2 c. shredded rotisserie chicken; 3/4 c. frozen corn; 3/4 c. frozen peas; 1/4 c. cooked bacon