Preheat oven to 400°; pat fish dry, line a sheet pan with foil, drizzle fish with oil, salt/pep + blackening seasoning; bake 10-12 min until firm, opaque + cooked through

Meanwhile, heat 1 tbsp oil in skillet over med-high + sauté pepper mix with salt/pep 4-5 min or until soft + starting to brown

Wash + slice zucchini into ¼-inch rounds; add zucchini to onions + cook 3-4 min

Divide veggies between bowls + top with halibut—that looks great!