To prepare them you need:

3 large colored peppers;
1 jar of Delicatessen beef;
2 onions;
100g mushrooms;
cooking oil or other cooking fat;
salt, red and black pepper

How to prepare them:

Stew onions and mushrooms in a pan and season with salt, black and red pepper. Cut and clean the peppers and put them with a little oil to bake in the oven for about 30 minutes. Take them out and arrange in each pepper a slice of yellow cheese and fill the mixture with onions and mushrooms. Put the beef from the jar on top and cover again with a slice of yellow cheese. Put back in the oven for another 10 minutes and you’re done!

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