Tear corner of rice to vent + heat in microwave 90 sec; if using a skillet, warm 2 min with 1 tbsp water; set aside

In a small bowl mix together 1 tbsp mayo + 2 tbsp sweet chili lime sauce; set aside

Heat 1 tbsp oil in a skillet over med-high, pat dry beef, add to pan in one layer + sear 2 min; flip + cook 1 more min, season with salt/pep; set aside

Wipe mushrooms clean + thinly slice; heat 1 tbsp oil in skillet over high, cook undisturbed 3 min; sauté 3-4 min til browned + tender, season with salt/pep; add beef back + mix in sauce

Wash scallions, thinly slice crosswise

Divide rice + beef to plates, garnish with scallions