Pre-heat oven to 350° F

In a small pan, saute chopped onions and garlic until onions are brown (might want to add garlic later so that the garlic won't burn). When done, set to side to cool

In a small bowl, combine ketchup, mustard, and brown sugar and mixed together. Taste mixture when done to test the sweetness. Set to the side.

In a large bowl combine ground turkey, egg, bread crumbs, seasoning salt, ground pepper, worcestershire sauce, onions, and garlic. Toss together until it is mixed well. Then pour into your greased baking dish

Chop as much brie as you desire into 1in cubes then insert into your meat mixture

Pour ketchup mixture over top of the meat mixture and spread evenly throughout.

Cook in the oven for 50-60 mins uncovered.

Enjoy! =)