Preheat your oven to 350°F (175°C). This step is crucial for ensuring your dip bakes evenly and reaches the perfect bubbly temperature.
Lightly spray your baking dish with olive oil spray. This will help prevent sticking and make cleanup a breeze.
In a large mixing bowl, combine the finely chopped callions, bell pepper, corn kernels, kosher salt, and Old Bay seasoning. Stir until the vegetables are evenly coated with the seasoning.
Gently fold in the lump crab meat, light mayo, nonfat Greek yogurt, and lemon juice. Be careful not to break up the crab too much; you want to keep those lovely lumps intact.
Spoon the mixture into your prepared baking dish, spreading it evenly. Top with crushed butter crackers or gluten-free breadcrumbs to add a delightful crunch.
Place the baking dish in the preheated oven and bake for 25-30 minutes, or until the dip is hot and bubbling, and the top is lightly golden brown.
Remove from the oven and let it cool slightly before serving. Pair your Hot Crab Dip with crispy crudités and extra butter crackers for a delightful snacking experience.