To prepare grits, process cauliflower, in batches, in a food processor until cauliflower resembles grits.
Heat 1 tablespoon oil in a small saucepan over medium heat. Add cauliflower to pan; cook 4 minutes stirring often. Stir in broth, almond meal, salt, and pepper. Cook 12 minutes or until liquid is evaporated, stirring frequently.
To prepare shrimp, grate the rind from lemon; set aside. Cut lemon in half; squeeze juice into small bowl.
Heat 3 tablespoons oil in a large nonstick skillet over medium heat. Add onion and garlic. Cook 8 minutes; stirring frequently. Add shrimp, seasoning, lemon rind, and lemon juice.
Saute 4 minutes or just until shrimp turns pink. Remove from heat, and stir in parsley.