To cook up the sausage, peppers, & onions:

Slice up your pepper and onion.

Heat 1 tablespoon olive oil in a large skillet over medium heat until shimmering. Add the pepper and onion to the pan and saute for three minutes, stirring occasionally.

While the pepper and onion are sauteing, slice the sausage into coins and mince garlic (if not using jarred).

Stir the sausage, garlic, and crushed red pepper into the skillet with the bell pepper and onion. Continue to saute over medium heat for another ten minutes, stirring occasionally.

While the sausage is cooking, shred the mozzarella.

Once the sausage and peppers are done, turn off the heat under the pan and proceed to making the quesadillas.

To make the quesadillas:

Make quesadillas three at a time in a 12″ cast iron skillet. To do so:

Sprinkle shredded mozzarella across half of each tortilla. Top that with the sausage, peppers, & onions mixture, and fold each tortilla in half over the filling.

Brown the quesadillas in your skillet, three at a time over medium heat, until tortillas are nicely browned and cheese is melted.

Assemble the next round while the first batch is cooking, and repeat the process until you’ve finished all the quesadillas.

Enjoy as is, or with sour cream!