Credits: this is not my idea, but something popular around here, that people just rarely make themselves. See link for more inspiration.
Step 1: Ingredients
For just an appetizer, choose white flour and less "loaded" filling. To save time, I used a pack of ready-to-use bread flour, with seeds.
Step 2: Make the Bread
Build a cylinder of wax paper into a round cake mold. Spread oil and a little flour on the bottom of the mold (to avoid sticking).
Cover and let rest for 2+ hours.
Bake for 20 minutes at 100°C (approx 200°F) and 30 minutes at 200°C (approx 400°F).
While it is baking, prepare the filling -- see next step.
Step 3: Make the Fillings
Use olive oil rather moderately, and do not let the oil cool down (it is re-heated oil that is unhealthy). Add salt.
Hack the herbs and mix them into the cream cheese. Add salt and pepper.
Chop the dried tomatoes.
Step 4: Make the Sandwiches
Slice horizontally to get four slices. A bread knife insures clean cuts.
Make two (big!) sandwiches: spread butter, cream cheese with herbs, and add the vegetables.
(Depending on the bread size and you skill, you can make thinner slices for more floors.)
Cut vertically into 4 sectors, then each sector into 3. Hence 12 sectors, so 24 little sandwiches!
Step 5: Arrange the Stack
Re-use the wax paper for protection (to keep moisture) and cover with a light plate, and keep in the fridge until serving time.