Preheat oven to 375°F. Grease an 8x8-inch baking dish and set aside.
In a small bowl, combine the cream cheese, mayonnaise, and Greek yogurt until evenly mixed and smooth. You may use a hand mixer for this but it is not necessary.
Add the Dijon, Worcestershire, brown sugar substitute, and poppy seeds and mix until combined.
Add the chopped ham and broccoli florets to the mixture and toss until everything is evenly coated. Transfer to the baking dish.
Top with the shredded Swiss cheese.
Bake for 25 minutes untl the cheese is melted and slightly browned. Let rest 5 minutes before serving.