30 Minutes Ahead: Pat dry your ribeye really well and season both sides with seasoning salt. Let them rest at room temperature for 30 minutes.
Char the Veggies: Add the asparagus, Serranos and green onion to a plate and drizzle with olive oil. Place them directly on the grill cook until deeply charred, rotating for an even cook, about 5 minutes. Set aside.
Grill the Steak: Add the seasoned ribeye to the grill for 11-12 minutes, flipping half way through for medium-rare (See notes for temperature variations). Let it rest.
Make the Charred Veggie Salsa: Chop the charred asparagus, green onion, and Serrano pretty small and add it to a bowl. Mix in chopped cilantro, lemon, agave, vinegar, olive oil, salt and pepper.
Serve: Spoon the charred veggie salsa over the steak and enjoy!
Notes
Cooking times for bone-in ribeye based on 1 inch thickness:
Rare – 125°F – Center is bright red; pinkish towards the outside
Medium-Rare – 135°F – Center is very pink; slightly brown towards the outside
Medium – 145°F – Center is light pink; outer portion is brown
Medium-Well – 155°F – Center is slightly pink; outer portion is brown