Heat oven to 400°F. Combine ground pork, onion, garlic, minced jalapeño, egg, salt, panko, paprika, and cloves in a large bowl. Mix well with your hands until everything is incorporated.
Form into golf-ball-sized meatballs and place on a baking sheet. Roast until browned and firm, about 20 minutes.
Meanwhile, combine chicken broth and mole paste in a large saucepan. Bring to a simmer, stirring constantly, until the paste dissolves. Add roasted meatballs and simmer, covered, over low heat for 30 minutes.
Heat broiler to high. Cut rolls in half and spoon meatballs (about 4-5 per roll) with a little bit of sauce into the rolls. Place on a baking sheet and sprinkle with cheese. Place under the broiler until cheese is golden and melted, about 1-2 minutes. Top with sliced jalapeños and serve.