Lentil Soup with Caraway and Minted Yogurt

Name: Lentil Soup with Caraway and Minted Yogurt
Ingredients: 2 tbsp. canola oil; 2 medium yellow onions, roughly chopped; 1 carrot, roughly chopped; 2 tsp. coriander seeds, toasted and finely ground; 1 tsp. caraway seeds, toasted and finely ground; 2 cloves garlic, crushed; 6 cups vegetable stock; 1 1⁄2 cups red lentils, rinsed and drained; Kosher salt and freshly ground black pepper, to taste; 5 tbsp. Greek yogurt; 2 tbsp. finely chopped fresh mint; Toasted flat bread or pita, for serving