Preheat the oven to 200 ºC. Cut the peppers into strips, the zucchini into slices and the onion into rings. Divide the vegetables on a baking tray and sprinkle with oil and season with salt and pepper. Roast the vegetables in the oven for about 20 minutes.
The coleslaw: Cut or grate the cabbage and the apple into thin strips. Mix the cabbage and apple. Sprinkle with lemon juice and season with salt and pepper. Spoon the mayonnaise into the salad and set aside.
Bake the Sensational Sausages in the frying pan, grill or BBQ according to the instructions on the package.
Cut open the sandwiches and top them with some lettuce leaves, coleslaw, roasted vegetables and capers. Place the sausages in it and garnish with tomato ketchup and arugula cress.