Pat dry, season, and sear in half the oil for 2–3 minutes per side. Add butter and baste for 1–2 minutes. Rest 5 minutes, then cube.
Dissolve collagen in warm water, then add soy sauce, oyster sauce, and sesame oil.
Add remaining oil. Toss in frozen veggies and zucchini. Let them sit 2 minutes to char, then stir and cook until browned.
Push veggies aside, scramble eggs in the cleared space, then fold together.
Add garlic for 30 seconds. Add rice, break up clumps, and let it sit 2 minutes to crisp before tossing.
Add cubed steak and juices. Pour in collagen sauce and toss hard for 1–2 minutes until glossy.
Kill the heat, fold in green onions, taste, and adjust seasoning.