* The key to success with this recipe is cooking two pans at once so the shrimp and grits are ready at the same time.
* Riced cauliflower can be found in the produce or freezer section of your grocery store. Or you can prepare it yourself starting with a head of cauliflower and using one of these two techniques – use a box grater with the medium-size holes traditionally used to grate cheese, or a food processor with the grater blade to pulse it into small pieces. With both techniques you’re aiming for little pieces the size of rice. A 2 to 2-1/2 pound head of cauliflower yields about 6 cups of riced cauliflower. You can freeze what you don’t use and cook with it straight from the freezer (no need to defrost).
* If you don’t have Cajun seasoning, you can substitute Old Bay.