Start by preparing the filling. In a non-stick skillet, heat a little oil and brown the onion, garlic and leek.
Place this stir-fry in a bowl and add the tuna, carrots, ricotta, tomatoes, peas, oregano, pepper and salt. Mix everything and set aside.
I will prepare the dough. In a blender, beat: milk, eggs and oil. Then add the flour, a little salt and paprika. Beat well until obtaining a homogeneous mass.
Transfer the dough to a bowl and mix in 2 tablespoons of the sesame mix and the yeast gently to incorporate.
In a greased pan, pour the dough, cover with the stuffing and sprinkle a tablespoon of the sesame mix on top.
Bake in a preheated oven at 200ºC for about 40 minutes to bake. (Do the toothpick test)