Wash the broccoli and cauliflower thoroughly.
Cut the broccoli and cauliflower into bite-sized florets.
Halve the cherry tomatoes and dice the red onion and bell pepper.
In a large mixing bowl, combine the broccoli and cauliflower.
Add the cherry tomatoes, red onion, and bell pepper to the bowl.
In a separate bowl, whisk together the olive oil and apple cider vinegar.
Pour the dressing over the salad ingredients.
Season with salt and pepper to taste.
Toss everything together until well coated.
Garnish with fresh parsley and optional feta cheese or nuts.