Still looks great! I am curious as to what temp you baked at? 350*F is as high as I go with things like this. It lets the interior get done without burning the crust. Your choice of Cheese, while tasty, is too wet to to set properly before the moisture in the cheese turns to steam and causes a blow out. You can cut vent slits in the top that will help release the steam but the whole deal will probably collapse and not look as pretty. A more common Cheese Filling in baking is made with Farmer's Cheese, a dryer style of Small Curd Cottage Cheese or Riccotta. It is available in many parts of the country under the brand name Friendship Farmers Cheese. Here is a link to participating Stores...
http://www.friendshipdairies.com/products/wheretobuy.html You can also use the small curd Cottage Cheese or Riccotta but you must line a sieve with two layers of Cheese Cloth, place the cheese inside and top with a 1 lb weight and let drain overnight. You get a nice dry yet crumbly cheese to work with. You can also make your own Farmers Cheese if you wish, Yes I will give you my Recipe! The Cheese is then mixed with Sugar, Egg Yolk, Vanilla, Lemon Zest and Flour to help bind into a creamy yet firm filling...I hope you enjoy this...JJ
Cheese Filling
2C Farmers Cheese
2ea Egg Yolks
1/2C Sugar, more if you want it sweeter.
3T AP Flour
1/2 tsp Vanilla Extract
Lemon Zest to Taste, Optional
Fold together, gently, until well combined. Refrigerate until ready to use.
Farmers Cheese
1Gal Whole Milk
1Qt Buttermilk
3T White Vinegar
1-2T Kosher Salt, taste the milk, should be salty but not harsh
Place the Milk and Salt in a heavy bottom pot and heat Low and Slow to 185*F or just begins to simmer. Turn off heat.
Add the Buttermilk then Vinegar and slowly stir just until the curd start to form. Leave the whole deal rest 30 minutes, with out touching.
Line a large Sieve with 2 layers of Cheesecloth about 12" Square. Place the Sieve over a wide pot. Using a slotted spoon or small sieve, Gently lift the Curds from the Whey and place in the cheesecloth.
Allow to drain 5 minutes then fold the cheesecloth to cover the Cheese. Top with a 1 Lb weight, I use a bowl with 2C water, and let drain at least 1 hour or overnight in the refer.
The Cheese is now ready to use in any recipe the calls for Farmers Cheese, Cottage Cheese or Riccotta...I have used it in Lasagna and Cheese Pierogi...You can even eat it as a Spread on Bagels with Smoked Salmon and Onion or on Toast sprinkled with Cinnamon Sugar or Honey. Mix in finely minced Garlic, Chives, Thyme or any Herbs you like for a homemade Garlic Cheese Spread...
Yields is about 1 Lb or about 2 cups Cheese that will keep 5 days covered in the refer.