Preheat your oven to 350*
Line a baking sheet with parchment paper. Place the sliced bell peppers on the baking sheet. Spray with avocado oil. Bake for 10 minutes. Flipping half way through.
Meanwhile, mix your tuna in a small bowl with mayo, relish, red wine vinegar, dried seasonings, and hot sauce. Add the optional ingredients, if desired. Season to your taste.
Carefully, remove the baking sheet from the oven and add scoops of the tuna. Fill up each bell pepper half to the brim.
Bake all four filled bell peppers for 10 minutes in the oven.
Remove from the oven and top with sliced white cheddar goat cheese.
Broil for about 4 minutes just until the cheese melts.
Allow to cool. Plate and use a fork and knife to enjoy each tuna melt!