Steps
1. Heat olive oil in a skillet over medium heat.
2. Add the sliced onions and sauté until they become translucent, about 3-4 minutes.
3. Add the sliced bell pepper to the skillet and continue to cook for another 3-4 minutes until softened.
4. Season with salt, pepper, and paprika, stirring well to combine.
5. While the vegetables are cooking, place the cheese on one slice of rye bread.
6. Once the peppers and onions are ready, layer them on top of the cheese.
7. Top with the second slice of bread to form a sandwich.
8. In the same skillet, toast the sandwich on both sides until the bread is golden and the cheese is melted, about 2-3 minutes per side.
9. Remove from heat, slice in half, and garnish with fresh parsley if desired.