Grease a large cookie sheet with avocado oil. If you haven't already, thinly slice steaks, cutting against the grain.
Marinate meat: In large bowl, stir together avocado oil, coconut amino acids, optional fish sauce, ginger, honey, garlic and sea salt. Add meat and stir well to coat. Set aside for 20 minutes. (Do not marinate beef for an extended period of time.)
If you haven't yet, cut the pineapple and onion. (See How to Cut Pineapple photos in the Recipe Notes.) Set oven to broil and move an oven rack to the highest level.
Place beef, pineapple and onions on skewers, leaving about 1-1/2 inches on each end. (See How to Assemble Kabobs photos in the Recipe Notes.)
Line up skewers on greased cookie sheet.
Broil beef until cooked through (just beginning to char on the edges), 8-10 minutes. Watch closely, checking on it occasionally. (Pan juices will collect while broiling. Carefully pour these off into a small saucepan or dish by tipping pan to one corner. If desired, use pan juices over rice when serving, and/or thicken pan juices first. See Recipe Notes for how to thicken.)
Serve with cauliflower rice or organic Basmati rice (for GF). Garnish with chopped fresh mint leaves and coconut amino acids.