Recipe: Everyday Green Vegetable Slow Cooker Soup

Name: Recipe: Everyday Green Vegetable Slow Cooker Soup
Ingredients: 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