Beer Baked Beans - cooking recipe

Ingredients

4 slices bacon (I plan to use turkey bacon)
1 medium red onion, diced
2 (28 ounce) cans baked beans (I plan to use vegetarian)
1/4 cup ketchup
1/4 cup spicy brown mustard (or less to taste)
3 tablespoons molasses
1 (12 ounce) bottle lager beer

Preparation

Preheat oven to 400 degrees F.
Slice each slice of bacon into 4 pieces. Cook in a large pot over medium heat, until fat is rendered, but bacon is not yet crispy.
In pan with bacon fat, cook chopped onion until soft, about 5 minutes. Add remaining ingredients, stir to combine. Bring to boil, then reduce heat and simmer for 10 minutes.
Carefully transfer with a ladle to a 2-quart casserole dish. Place on foil-lined baking sheet and bake 45 minutes to 1 hour, or until beans are desired thickness.