Leave these components for 3–4 minutes to sear before stirring. Leave everything for 4 minutes after stirring well.
Mix in liquid aminos (or coconut aminos or teriyaki sauce). Cook and stir until the steak is charred and the potatoes are tender.
Taste the beef and potatoes and add liquid aminos if needed. You can add red pepper flakes for heat and lemon zest for flavour.
Bowl it up and enjoy! Serve this steak and potato skillet with sour cream, spicy sauce, garlic herb butter, balsamic vinegar, or lime juice.