Sloppy dogs

Name: Sloppy dogs
Prep time: 5 min
Cook time: 20 min
Total time: 25 min
Cuisine: American
Ingredients: 2 x white onions, peeled and finely chopped; 1 x red pepper, deserved and finely chopped; 150ml pork stock, (2 pork stock cubes dissolved in 150ml boiling water); cooking spray; 500g minced pork; 1 tsp x onion granules; 1 tsp x garlic granules; 0.5 tsp x sweet paprika; 0.5 tsp x mustard powder; 2 tsp x Worcester sauce; 1 tbsp x balsamic vinegar; 400g tin chopped tomatoes; 4 tbsp x tomato puree; Pinch of Sea salt; Pinch of black pepper; 6 x finger rolls; 120g x reduced-fat cheddar, finely grated; 2 x spring onions, trimmed and thinly sliced