Pea and Potato Curry

Name: Pea and Potato Curry
Ingredients: 1 teaspoon coriander seeds; 1 teaspoon fennel seeds; 1 teaspoon mustard seeds; 1 tablespoon extra-virgin olive oil; 1/2 cinnamon stick; 1 green chili; 2 cloves garlic, minced; 1 medium yellow onion, chopped; 1 tablespoon minced fresh ginger; 7 fresh curry leaves (optional); 3 large tomatoes (about 2 pounds), chopped; 1 pound Yukon gold potatoes, chopped into 3/4-inch pieces; 1 cup fresh shelled peas (from 1 pound peas in pods); Coarse salt; 2 tablespoons whole-milk Greek yogurt