Preheat oven to 375 degrees and line a baking sheet with parchment paper. Remove outer leaves from cabbage and trim bottom stem even with the leaves. Place stem end flat on cutting board and cut cabbage vertically into ¾"-thick slices.
Arrange cabbage slices on prepared baking sheet and brush both sides with olive oil or melted butter. Sprinkle cabbage steaks with garlic powder, salt and pepper on both sides as well. It is important to season both sides.
Bake 30 minutes but begin checking on them at about 20 minutes. Remove from oven when cabbage reaches desired tenderness. Serve immediately and enjoy!
One Last Thing
To ensure the best possible flavor, make sure to season both sides of the cabbage steaks well!