2 medium carrots diced 1 medium yellow onion chopped 1 tbsp olive oil 3 cloves garlic , minced 6 cups vegetable broth 2 1/2 cups 3/4-inch diced yukon gold potatoes 2 1/2 cups 3/4-inch diced butternut squash (i bought it pre-cut) 1 medium zucchini , ends trimmed, sliced into half moons or quarters 1 (