Place the steak in a large baking sheet and squeeze lime juice over the steak.
In a small bowl, combine the chili powder, cumin, paprika, garlic powder, salt, pepper, and coriander.
Add the spice rub to the steak, turning to coat the meat thoroughly with the rub and pressing with your fingers to help the rub stick to the meat. If you have time, cover the steak with plastic wrap and keep in the fridge for 30 minutes to 1 hour. You can let it marinate for up to 4 hours.
When ready to grill, preheat a clean, oiled grill to medium-high heat.
Place the steak on the hot grill and grill for 4 to 5 minutes on each side, depending on your preference. The steak should be 130-135°F for medium rare, and 145°F for medium.
Transfer the steak to a large cutting board and cover it loosely with aluminum foil. Let the steak rest for 10 minutes. Cut the steak against the grain into thin slices.
To assemble the salad, place the mixed greens on a large platter. Add the steak, corn, tomatoes, avocado, red onion, pepitas, and queso fresco. Drizzle with desired amount of dressing. Serve immediately.
Notes
Flank steak works best here, but sirloin, skirt steak, or ribeye are all great substitutes depending on what you have.
If time allows, marinate the steak for up to 4 hours for the best flavor, but even 30 minutes makes a difference.
Don’t skip resting the steak after grilling—this keeps it juicy and makes slicing much easier.
Slice the steak very thinly against the grain for the most tender texture.
Fresh corn is best in summer, but frozen corn (thawed) or canned corn also works in a pinch.
The creamy cilantro lime dressing is our favorite here, but basil vinaigrette, cilantro lime vinaigrette, or balsamic vinaigrette are also great options if you want to switch it up.
This salad is best assembled right before serving so the greens stay crisp and everything tastes fresh.