Step 1: Cut the bread crosswise into inch thick slices. Lightly brush each on both sides with olive oil. Season each slice of bread on both sides with oregano, salt, and pepper.
Step 2: Set up your grill for direct grilling and preheat to medium high. Brush and oil the grill grate.
Note: if you’re working on an open rotisserie without a grate, you can grill the bread in a grill basket.
Step 3: Grill the bread on both sides until toasted and golden brown, 1 to 2 minutes per side, turning with tongs. Serve at once.