Step 1

Preheat oven to 400 degrees

Step 2

In a Dutch oven add the hamburger and chopped onion. Cook over medium heat until the hamburger is no longer pink and the onion is tender. Drain any excess grease.

Step 3

Add the mustard, ketchup, brown sugar, and Worcestershire sauce and stir in.

Step 4

Add the can of beans and stir in.

Step 5

Place the beans in the preheated oven and bake for 40 minutes.

Step 6

Remove from the oven give a final stir and serve.