Tombet combines layers of sliced potatoes, aubergines and red bell peppers previously fried in olive oil. The aubergines and red peppers should not be peeled. The whole is topped with tomato fried with garlic and parsley and presented in a way that it looks like a pie without a crust.
Tombet is the Majorcan version of the Occitanratatouille or the Catalan samfaina. Influenced by those dishes, nowadays some people add zucchini to the mixture, but this is a vegetable that is not present in the original dish.