For the ham rolls, wash the asparagus and cut off the woody ends. Cover and cook in boiling salted water for 5-6 minutes. Lift out the asparagus and drain.
In the meantime, mix sour cream and mayonnaise for the aïolic cream. Peel the garlic and press it in directly through a garlic press. Season to taste with salt.
Place 3-4 slices of ham next to each other, slightly overlapping. Spread the aïoli on the ham slices, except for 1-2 tbsp. for the toadstools. Place 4-5 asparagus spears on top, roll up and cut into 2-3 cm pieces.
For the toadstools, boil eggs hard for about 10 minutes. Wash the tomatoes and cut off a lid. Use the tomato leftovers for other purposes (e.g. dice them and add them to the midnight soup.
Quench and peel the eggs. Cut both ends flat. Fill the rest of the aïoli into the piping bag and squirt dots on the lids.
Put the eggs on a plate. Place the tomato lids on top using skewers as hats. Arrange the ham rolls on the plate. Garnish with parsley.