2Add the sliced cabbage to a large sheet pan (or two to spread out).
3Drizzle the cabbage with 2 tablespoons of olive oil and season with 1 teaspoon of salt and pepper to taste.
4Toss the cabbage to coat.
5Roast the cabbage for 20-25 minutes, tossing halfway.
6Pat the cannellini beans dry with a kitchen towel.
7Add the dried beans to a parchment-lined sheet pan.
8Add the remaining tablespoon of olive oil, remaining 1/2 teaspoon of salt, paprika, and garlic powder to the beans.
9Toss the beans to coat.
10Place the beans in the oven for 22-27 minutes, tossing halfway, until crisp.
11After removing the beans from the oven, add the walnuts and toss, then place back in the oven for 3-5 minutes.
12Make the dressing by adding parsley, scallions, Greek yogurt, olive oil, salt, pepper, honey, garlic, white wine vinegar, walnuts, and capers to a high-speed blender.
13Blend the dressing until smooth and creamy.
14Assemble the salad by adding the roasted cabbage, arugula, chopped apples, and pickled onions to a bowl.
15Add the desired amount of dressing and toss to combine.
16Top the salad with the roasted white beans and walnuts.