Oven-Baked 3-Ingredient Chicken Wellington Casserole – All Recipes Healthy Food

Oven-Baked 3-Ingredient Chicken Wellington Casserole

 

Classic Chicken Wellington is renowned for its elegance—juicy chicken wrapped in golden, flaky pastry. But when you want all those rich, savory flavors without the tedious rolling, chilling, and wrapping, this 3-Ingredient Chicken Wellington Casserole comes to the rescue.

By turning a gourmet staple into a simple bake, you get tender chicken coated in a creamy, mushroom-infused sauce, topped with a crisp, buttery puff pastry crust. It’s comforting, impressive, and takes just minutes to assemble.

The 3-Ingredient Magic

With only three core components, each ingredient does heavy lifting to deliver deep, layered flavor:

Ingredient Role in the Casserole Best Choice
Diced Chicken Breast or Thighs Provides the hearty protein base. Pre-cooked rotisserie chicken or raw diced chicken cut into bite-sized pieces.
Condensed Cream of Mushroom Soup Replicates the traditional savory mushroom duxelles and creates a rich gravy. 1 can (10.5 oz) cream of mushroom (or cream of chicken and mushroom).
Puff Pastry Sheet Delivers that signature buttery, golden Wellington crust on top. 1 sheet frozen puff pastry, thawed according to package instructions.

Ingredients Checklist

  • 1.5 lbs Chicken breasts or thighs, diced into bite-sized cubes (or 3 cups cooked shredded chicken)

  • 1 can (10.5 oz) Condensed cream of mushroom soup (undiluted)

  • 1 sheet Store-bought puff pastry (thawed)

  • Optional for extra flair: 1 egg (beaten, for egg wash) or fresh parsley for garnish

  • To taste: Pinch of salt, black pepper, and garlic powder

How to Make It

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