Preheat the broiler. Line a cookie sheet with parchment paper. Rub the pepper with one teaspoon olive oil and roast in the oven for 25 to 30 minutes, or until the skin starts to char and fall off. Turn them once one side is dark and the skin begins to separate. Place the peppers in a bowl cover with plastic wrap for 5 to 8 minutes. Peel the skin off the peppers and remove the stem and seeds. Slice them into thin strips.
In a large skillet add 1 tablespoon olive oil over medium-high heat. Season the swordfish with salt and pepper. Sear the swordfish until cooked thru, about 3-4 minutes for each side.
Slice the swordfish into 4 even portions and top with onions and roasted bell peppers.