Start by whisking together the olive oil, red wine vinegar, dried oregano, Dijon mustard, honey, garlic powder, salt, and black pepper in a bowl. You will notice a lovely aroma as the flavors meld, and the dressing should have a nice, emulsified look. Be careful not to whisk too vigorously; you do not want it splattering everywhere!
Roughly chop the romaine lettuce into bite-sized pieces. It should feel crisp and fresh as you handle it, and make sure it is not too finely chopped to maintain that satisfying crunch. If it is chopped too small, it can get soggy once dressed.
In a large bowl, toss in the roughly chopped romaine, chickpeas, radicchio, cherry tomatoes, cucumber, kalamata olives, pepperoncini, and red onions. Give everything a gentle stir, allowing the colorful veggies to showcase their freshness.
Add the freshly grated parmesan and provolone cheese over the mixed salad. You want to see a bit of cheese on every bite, which makes it satisfying. If you are using pre-packaged cheese, check for any added gluten since that can sneak in.
Pour some of the vinaigrette over the salad right before you are ready to dig in, saving any extra for later. The salad should glisten, not drown in dressing. If you see excess liquid at the bottom, it might mean too much dressing was added; that can lead to a soggy salad.
Give the salad one last gentle toss to mingle everything together. Once plated, you may want to garnish it with a sprinkle of extra cheese or some fresh herbs for an inviting touch.