Step 1 Preheat oven to 375°F; line a large baking sheet with foil. Cut a small portion off stem end of peppers; reserve tops. Using a paring knife, remove and discard seeds and membrane. Step 2 Bring 3 cups water to a boil in a saucepan over medium-high heat. Add barley, cover, reduce heat to medium, and cook until tender, about 10 minutes. Drain well. Spread barley on a baking sheet; let cool completely. Step 3 Warm oil in a medium nonstick skillet over medium heat. Add corn and zucchini; cook, without stirring, until slightly tender and browned on 1 side, about 5 minutes. Transfer to a large bowl. Add barley, cheese, salt, lime zest, 1 tablespoon lime juice, 2 tablespoons cilantro, and 1/4 teaspoon cayenne; stir well. Step 4 Spoon about 1 1/2 tablespoons corn mixture into each pepper; place peppers on baking sheet. Cover open ends with reserved tops. Bake until tender, about 20 minutes. Step 5 Whisk together yogurt, 1/2 tablespoon water, and remaining 1/2 tablespoon lime juice in a small bowl. Drizzle over baked peppers. Sprinkle with remaining 1 tablespoon cilantro and pinch of cayenne.

Step 1 Heat oil in a pot over medium heat. Add turkey; cook, breaking up meat, until browned, 5 to 8 minutes. Remove from pot using a slotted spoon. Step 2 Add onion, jalapeño, and garlic to pot; sauté until onion is tender, about 6 minutes. Add spices, salt, and pepper; stir until fragrant, about 1 minute. Add tomatoes and their juices; cook, stirring, for 1 minute. Step 3 Return turkey to pot and add beans, sweet potatoes, and 2 1/2 cups water. Bring to a boil, lower heat to a simmer, and cover. Cook until sweet potatoes are tender and chili is thick, about 1 hour. Step 4 Taste and season with additional salt and pepper. Serve with toppings, if desired.