Step 1

Place all ingredients for meat EXCEPT for steak in large bowl or zip-top bag. Combine well, then add steak and lightly toss or massage to cover. Cover bowl or zip bag closed and refrigerate for 2 hours and up to overnight.

Step 2

Once ready to cook, heat large skillet over medium-high heat. Remove meat from marinade, shaking off any excess (discard marinade).

Step 3

Sear steak for 2-5 minutes per side, depending on thickness and how done you want your steak. Remove from skillet and place on a plate. Tent with foil and allow to rest until vegetables are done.

Step 4

To the skillet, add 1 tablespoon olive oil. Cook onion until fully softened and starting to look golden, about 4-5 minutes. Remove and set aside on a plate.

Step 5

Add remaining tablespoon of olive oil to skillet and cook peppers until done to your liking. Return onions to skillet and toss while heating through for 30-60 seconds, seasoning vegetables with a few pinches of salt if needed. Remove from heat.

Step 6

Uncover steak and slice into thin slices (slice against the grain; slicing at a slight angle makes the steak look best).

Step 7

Immediately serve sliced steak and vegetables with warmed tortillas and your favorite toppings.