Prep the ingredients by slicing the sausage into 1/4 inch pieces, slice the bell peppers into strips, and slice the mushrooms.

Heat a large pan on medium to medium high heat and add the sausage. Cook and stir the sausage occasionally until browned and cooked through.

Remove the sausage to a plate with a slotted spoon, draining as much fat as you can.

Wipe out the same pan and place back on medium heat and add the bell peppers. Cook, stirring occasionally, until the peppers are tender yet crisp.

Add the mushrooms and stir into the peppers. Season with black pepper as desired. Continue cooking, stirring often to work the mushrooms through the bottom of the pan, until the mushrooms are starting to wilt and release their water.

Add the sausage back to the pan and continue cooking, stirring occasionally, until the mushrooms are fully wilted and the sausage heated through. Serve with rice, enjoy.