Toss the steak with the salt, chili, cumin, onion powder, smoked paprika, garlic powder, and oregano. Set aside. Heat a large pan over medium high heat and when hot, add the oil. When the oil is shimmering, add the steak and brown on all sides and cook to desired doneness, about 8 minutes total for medium-rare. Remove from pan and set aside. Add the monk fruit, lime juice and cook until syrupy.
Heat the oil in a large pan over medium high heat. Add the cauliflower rice and stir to combine. Cook, uncovered, stirring often for another 5-10 minutes until the cauliflower is tender and little to no liquid remains.
Off heat, squeeze lime juice over top and sprinkle with chopped cilantro. Stir to combine and serve.
While the cauliflower cooks, prepare the chipotle sauce. Add all ingredients to a blender (start with 1/4 teaspoon salt). Process until completely smooth. Taste and add more salt, if desired.
Serve the beef with the cauliflower and poblanos along side with the chipotle sauce drizzled over top and a bit more cilantro, if desired.