Place steak in between two pieces of wax paper and place on cutting board. Using a mallet or a heavy skillet proud out to 1/2”- 1/4”. My steak was pretty thick so I only got it to 1/2” thick, don’t worry about the thickness too much, just make sure you pound it thoroughly. {This helps with breaking down the tough fats throughout the meat.}
Slice meat into slivers about 1/2” thick and 2” long.
Sprinkle meat all over with salt and pepper. Set aside.
Place a heavy skillet over medium-high heat, add coconut oil, when melted toss in asparagus, peppers, and mushrooms. Stirring to cook evenly. I cooked mine 5 minutes, You want your vegetables still crisp, not soft and mushy.
Using a spoon remove your vegetables from the skillet and set aside on a plate.
Place your meat and 1/2 of your marinade into the skillet. The marinade with boil up, just stir so that it does not burn. Flipping your steak so that it cooks on both sides. About 3 minutes per side.
Toss vegetables back in the pan with beef and marinade and coat evenly with the sauce. Taste and add more marinade if you like.
Top with sesame seeds and serve alongside remaining soy sauce mixture.
If you are not paleo, cook up some gluten free soba noodles and serve stir-fry over cooked noodles