Gather all steak and marinade ingredients, mix together until completely combined, and place them into a large container with a lid. Refrigerate for at least 2 hours or overnight.
Prepare all mango salsa ingredients and mix together well. The mango salsa can be prepared ahead of time or right before cooking the steak.
Whisk together all yogurt sauce ingredients until fully combined. The resulting sauce should be fairly runny and not too thick. Add water if it needs to be diluted until you reach desired consistency.
Heat neutral oil in a medium pan over medium-high heat. Once it’s hot, add the marinated steak pieces and cook for 4-6 minutes, mixing every minute or so.
Heat corn tortillas and start assembling your tacos! Start with a base of steak, add mango salsa, and finish off with the tangy yogurt sauce! Enjoy :)