SAUCE: Add the sour cream, mayo, jalapeño, lime juice, zest, cilantro, old bay, and chipotle chili powder to a blender and blend until mostly smooth with just speckles of cilantro running through the sauce. Pour the sauce into a container, cover, and place in the fridge until ready to use.
FISH: In a bowl, mix together the cornstarch, salt, garlic powder, cumin, smoked paprika, old bay, and cayenne. Pat the fish loins/filets dry with a paper towel. Sprinkle the prepared seasonings over the fish, making sure to evenly coat both sides. Heat a non stick skillet over medium-high heat. Add the oil and cook the fish for 2-4 minutes on each side or until the fish starts to turn opaque. Take care not to over cook the fish. Remove the filets to a plate and flake with a fork.
SLAW: In a small bowl, combine the sesame oil, lime juice, garlic, salt, agave, and whisk together. Add the cabbage mix to a bowl and pour the dressing over the mix. Toss to combine, taste and adjust with more seasonings as desired.
BOWLS: Place the desired amount of rice in bowls, top with flaked fish, cabbage slaw, black beans, avocados, and cilantro as desired. Then drizzle the sauce over the bowls and serve.