In a large bowl, add crabmeat, sweet red pepper, scallions, 1/4 cup bread crumbs, greek yogurt, mustard, lemon juice, egg white, seasonings, and Sriracha sauce.
Mix ingredients with washed hands or a wooden spoon.
Depending on the desired size, form into 6-8 patties.
Transfer patties to a plate and refrigerate for 20 minutes.
(While patties are in the fridge, prepare lemon-dill sauce.)
In a large non-stick skillet, heat olive oil on medium heat.
In two separate batches cook patties for 3-4 minutes, flip, and cook another 2-3 minutes. Crab cakes should be golden brown.
Garnish with fresh or dried dill (optional)