Thinly slice the banana peppers using a sharp knife.
Heat oil in a pan and sauté the sliced peppers, onions and tomatoes.
Season with salt, pepper and paprika. Stir and cook over medium-low heat.
Once the veggies look softened, take the pan off heat and let it cool. Serve or store for later.
Notes
Use a good quality, heavy-bottomed Dutch oven or pan to cook this. A thicker base will ensure the heat is evenly distributed and nothing ends up burning.
Stick to using large, juicy tomatoes here. Cherry tomatoes aren't great as they have more skin than flesh.
Chop the tomatoes into large cubes, and slice the peppers into roughly the same size to ensure even cooking.
To make the dish more hearty, you can add sliced sausages into the mix.