Step 1

Move the oven rack to the middle position and preheat to 350 degrees F. Lightly grease a 9x13-inch pan with nonstick cooking spray.

Step 2

In a large bowl, combine drained beans, canned soup, and milk and stir until well combined.

Step 3

Stir in 1 can of fried onions.

Step 4

Pour the mixture into the prepared baking dish and spread evenly.

Step 5

Bake for 30-35 minutes, or until the edges of the casserole are bubbly.

Step 6

Remove the casserole from the oven and evenly distribute the remaining can of fried onions over the top.

Step 7

Bake for 5 minutes longer. Serve immediately.