Preheat your oven to 350°F and line a baking sheet with parchment paper.
Slice 1/4 off the length of each cheese stick to create smaller pieces for filling gaps later.
Roll a large piece of mozzarella stick into each side of the tortilla, creating a stuffed crust. Secure the edges with two toothpicks.
Use the smaller cheese stick pieces to fill any remaining edges, ensuring no cheese is wasted.
Heat a skillet over medium heat with a drizzle of olive oil. Sauté the sliced red and green bell peppers until they begin to soften.
Add the cooked chicken to the skillet and stir until warmed through.
Spread a thin layer of marinara sauce in the center of each tortilla.
Sprinkle shredded mozzarella cheese evenly over the sauce, then layer with the chicken and pepper mixture.
Transfer the pizzas to the prepared baking sheet and bake for 20 minutes, or until the crust is browned and crispy.
Remove from the oven, slice into pieces, and serve hot.