Preheat the oven to 350.
In a mixing bowl, combine the tuna, pepper and shredded cheese and toss well.
Lay 4 tortillas flat on a lightly greased cooking sheet. Divide the tuna mixture evenly and top with the remaining tortillas. Place in the preheated oven for about 8 minutes, then flip and cook for another 8 minutes.
Slice with a pizza cutter before serving.
Prepare the veggies.
Serve Tuna Quesadillas with sour cream garnish and veggies.