Capsicum Veggie Burger with Creamy Pepper Slaw

Name: Capsicum Veggie Burger with Creamy Pepper Slaw
Prep time: 15 min
Cook time: 15 min
Total time: 30 min
Cuisine: American, Indian
Ingredients: 1/4 pound capsicum (bell pepper) (diced, 113g); 1/4 pound cabbage (finely shredded, 113g); 1/4 pound carrots (peeled and grated, 113g); 1/2 pound heavy cream (225g / 1 cup, or sour cream for a tangier slaw); 1 teaspoon mustard powder; 2 teaspoons sugar; 1/2 teaspoon ground black pepper (or to taste); 1 pinch salt (to taste); 1 medium cucumber (peeled and sliced into rounds); 2 medium tomatoes (sliced into rounds); 1 small onion (thinly sliced, optional, for layering in the burger); 5 tablespoons tomato ketchup (75ml); 10 small salad leaves (optional); 8-10 pieces prepared veggie cutlets (store-bought or homemade); 1/4 cup neutral oil (60ml, vegetable or canola, for shallow frying); 8-10 whole burger buns (sliced horizontally)