Soak the salmon in milk for 30 minutes to remove any fishy odor or flavor.
Drain and rinse.
Place the salmon on a baking sheet sprayed with cooking spray, skin side down.
Rub the extra virgin olive oil over the salmon.
Mix Cajun seasoning, garlic powder, Old Bay seasoning, oregano, smoked paprika, blackening seasoning, onion powder, and cayenne in a bowl.
Mix the melted hot sauce, butter and lemon in another bowl.
Pour butter sauce over the salmon.
Sprinkle the dry spice mix evenly over the salmon.
Bake for 20-25 minutes until the salmon flakes easily with a fork or a temperature gauge reaches 145 degrees.
Heat the mashed cauliflower and the cauliflower rice in the microwave and heat according to the package instructions.
Squeeze out the water from the mashed cauliflower using a cheesecloth.
Spin out the water from the cauliflower rice using a salad spinner, or place it in a kitchen towel, much like you would squeeze water out of spinach.
When as much water is squeezed out as you can, place the mashed cauliflower and riced cauliflower in a bowl together and mix.
You may need to reheat the cauliflower mixture to make it hot again, if needed.
Add the white cheddar, seasoned salt to taste, and butter.
Stir until the cheese is melted.
Add the minced jalapeno and stir.
Add the tiniest bit of milk to make it more creamy if needed.
Remove the salmon from the oven and cut into portions.
Serve the salmon over the hot white cheddar cauliflower grits.