In a mixer bowl, place all the dough ingredients except the salt. Knead on low speed for 5 minutes.
Add the salt and knead for another 7 minutes until the dough becomes flexible and smooth.
Shape the dough into a ball and transfer it to a greased bowl. Let it rise for about 1.5 hours, until it doubles in size.
Punch the air out, transfer the dough to a floured work surface, and divide it into equal parts weighing 150 grams each. Gently shape each part into a ball and place them on a lined baking sheet.
Generously flour the balls, cover them with plastic wrap and a towel, and let them rise for another 40 minutes.
Preheat the oven to 480°F (250°C) in convection mode. Ideally, bake on a baking stone or a hot tray. Bake for about 20 minutes until golden brown.
Remove from the oven and cover with a towel for 20 minutes.
Make a sandwich with the frena rolls, matbucha, tahini, leafy greens, and tomatoes.