Roasted Sweet Potato Sandwich with Rajas Salsa

Name: Roasted Sweet Potato Sandwich with Rajas Salsa
Ingredients: 1 lb. sweet potatoes, peeled and sliced 1/2″ thick lenghwise; 1 tbsp. olive oil; 1 tsp. ground cumin; 1⁄2 tsp. ancho chile powder; Kosher salt and freshly gound black pepper, to taste; 2 1⁄2 tbsp. fresh lime juice; 2 tbsp. mince cilantro, plus 1/2 cup leaves and tender stems; 15 cherry tomatoes, quartered; 6 sweet, jarred cherry peppers, thinly sliced; 2 roasted poblano peppers, thinly sliced; 1⁄4 cup sour cream; 2 hoagie rolls, halved lengthwise