Preheat oven to 375°F (191°C).
Using a stand mixer or a handheld mixer, beat the cream cheese on medium-high speed until smooth and creamy, about 1 minute.
Add the mayonnaise, greek yogurt (or sour cream), 3/4 cup cheddar cheese, 1/2 cup gouda cheese, ground mustard, lemon juice, Old Bay seasoning, minced garlic, Worcestershire sauce, and hot sauce (if you want it spicy) into a bowl. Mix on medium-high speed until combined.
Stir in the chopped green onions and diced jalapenos using a rubber spatula. Then gently fold in the crab meat. Be careful not to break up the crab meat!
Transfer to a 9-inch (or slightly larger) baking pan, pie dish, or oven-safe skillet. Sprinkle the top with the remaining shredded cheddar cheese and a pinch of Old Bay seasoning.
Bake for 20-25 minutes or until hot and bubbly around the edges. Allow it to cool for 5 minutes before serving. Serve warm with your choice of sliced bread, carrots, and celery.
Cover and store leftovers in the refrigerator for up to 3 days. Reheat in the microwave in 30-second increments or in a 350°F (176°C) oven until warmed throughout.