Burrito Zucchini Boats

Name: Burrito Zucchini Boats
Prep time: 10 min
Total time: 10 min
Cuisine: Mexican
Ingredients: 3 large zucchini, halved lengthwise; 2 tbsp. extra-virgin olive oil, divided; Kosher salt; Freshly ground black pepper; 1/2 yellow onion, finely chopped; 2 garlic cloves, minced; 1 lb. ground beef; 1/2 tsp. chili powder; 1/2 tsp. ground cumin; 1/4 tsp. paprika; 1/2 c. black beans; 1/2 c. coarsely chopped cherry tomatoes; 1/2 c. fresh or frozen corn, thawed; 1 c. shredded cheddar; 1 c. shredded Monterey Jack; Finely chopped fresh cilantro and lime wedges, for serving (optional)