01 -
Preheat oven to 400 degrees F. Generously coat a rimmed baking sheet with nonstick spray and set aside.
02 -
Cut off the bottom (root) end of the cabbage and place it on a cutting board sitting up so that the flat end is on the cutting board. Cut top to bottom into 3/4- to 1-inch thick slices. Place on the prepared baking sheet. If slices do not fit without touching, divide them between two baking sheets.
03 -
In a small bowl, whisk together the olive oil, garlic, salt, and pepper. Brush over one side of the cabbage slices, then flip the cabbage over and brush the other side.
04 -
Roast the cabbage for 26 to 28 minutes, or until crispy at the edges and tender in the center. Rotate the pan(s) 180 degrees halfway through baking; if using two pans, switch their positions on the upper and lower racks. Do not flip the cabbage slices during roasting.
05 -
While the cabbage bakes, toast the pecans by spreading them on a small ungreased baking sheet. Toast in the oven until fragrant and light tan in the center, about 8 minutes, tossing them once halfway through. Remove from the oven and transfer to a cutting board immediately to prevent overcooking. Let cool, then roughly chop.
06 -
Sprinkle the roasted cabbage with grated Parmesan and fresh herbs. Squeeze lemon over the top and finish with chopped pecans. Serve hot.