1. Preheat broiler to high.
2. Cut poblanos in half lengthwise; discard seeds and membranes. Place poblano halves, skin sides up, on a foil-lined baking sheet; flatten with hand. Broil for 8 minutes or until blackened. Place in a paper bag; fold to close tightly. Let stand 5 minutes. Peel; coarsely chop.
3. Heat a large nonstick skillet over medium-high heat. Add oil to pan; swirl to coat. Add potato; cook 5 minutes, stirring occasionally. Remove potato; place in a large bowl. Add onion to pan; cook 3 minutes. Add poblano, corn, red pepper, and garlic; cook 2 minutes, stirring frequently. Add onion mixture to potato. Add chorizo to pan; cook 1 1/2 minutes, stirring to crumble. Return potato mixture to pan. Stir in stock and salt; bring to a boil. Partially cover, reduce heat, and simmer 6 minutes or until potato is tender, chorizo is done, and liquid almost evaporates.
4. Working with 1 tortilla at a time, heat tortillas over medium-high heat directly on the eye of a burner for about 15 seconds on each side or until lightly charred. Arrange about 1/3 cup potato mixture in center of each tortilla; top with 1 1/2 teaspoons onions and 1 1/2 teaspoons cheese. Serve with lime wedges.
MyRecipes is working with Let's Move!, the Partnership for a Healthier America, and USDA's MyPlate to give anyone looking for healthier options access to a trove of recipes that will help them create healthy, tasty plates. For more information about creating a healthy plate, visit www.choosemyplate.gov.