Pour 1/2 c water into baking dish and preheat oven to 425 degrees
Slice 2 peppers half and remove stem
Place into baking dish and set aside
Chop remaining pepper into small pieces
Heat 1/4 c water in skillet over med-high heat
Add chopped peppers and cook, then remove from heat
Add fish to skillet and cook until done
Add peppers back to skillet and stir in taco seasoning, to taste
Stir until combined and flake fish into pieces
Scoop mixture evenly into the 4 pepper halves
Place into oven and bake for 35 minutes
Top with 1/2 T salsa per pepper half, if desired