3 cups low-sodium vegetable broth
2 cups small-dice unpeeled Yukon Gold potatoes
1 1/2 cups cauliflower florets
1 1/2 cups broccoli florets (from 1 broccoli stalk)
1 small yellow onion, diced
3 cloves garlic, minced
2 tablespoons olive oil
1 teaspoon kosher salt
1/2 teaspoon freshly ground black pepper, plus more for serving
1/8 teaspoon red pepper flakes
3 stems Swiss chard, stems and leaves thinly sliced separately
10 ounces frozen peas
1 1/2 tablespoons freshly squeezed lemon juice
1 teaspoon chopped fresh dill, plus more for serving
Options for serving: poached eggs, olive oil, crumbled feta cheese