In a saucepan over medium-heat, add the can of condensed soup, yogurt, broccoli, and 1/4 cup of cheddar cheese. Heat until warmed, about 4 minutes. Transfer to a greased baking dish.
Top with remaining cheddar cheese and Parmesan and bake until bubbly, about 30-40 minutes. Serve.
Notes
You can also use thawed frozen broccoli in this recipe.
If cheese is browning too fast, cover with foil until broccoli is tender.