With warmer weather now upon us, entrepreneur Elizabeth Chambers has been cooking with fresher and lighter ingredients. Her favorite recipe? This vegan tomato basil soup, which is on the menu at her award-winning Bird Bakery. Made with coconut milk, veggies and spices, “this nostalgic combination is the ultimate comfort food,” the founder, who opened a third location in Denver in March, tells Us. “It’s incredibly flavorful, and the creamiest and most delicious soup you’ve ever tasted.” While it can be enjoyed by all ages, Chambers says that it’s the “perfect lunch” to make for kids. “My children love dipping their sandwich in [it],” says the mom of Harper, 6, and Ford, 4 (dad is Armie Hammer), noting that when whipping it up at home, she often adds “avocado for extra…