Drain the artichokes and let them drain. Clean and wash the asparagus and cut into pieces of about 3 cm. Cut tomatoes into strips. Clean, wash and spin dry the lettuce. Peel pineapple, cut out the hard stalk. Dice pineapple
Heat the oil in a large frying pan. Fry the asparagus over medium heat for 3-4 minutes while turning. Add artichokes and tomatoes and steam for about 2 minutes. Season with salt and pepper. Remove vegetables from the pan. Steam pineapple in the frying pan for 1-2 minutes. Deglaze with stock, sour cream and mustard. Heat while stirring (do not boil any more!). Add vegetables again. Season to taste with salt and pepper
Arrange rocket in bowls, arrange artichoke and asparagus vegetables on top