This Baked Three Bean Casserole is perfect for all your summer parties! It's always a crowd pleaser!
Preheat oven to 325 degrees.
In a large Dutch oven or deep braiser, over medium-high heat, cook bacon until crisp. Remove from pot with a slotted spoon to a paper towel-lined plate.
Remove all but two tablespoons of bacon fat from pot. Add ground beef and onions and cook over medium-high heat until meat is no longer pink. Drain fat.
Add all other ingredients to the pot. Mix well. Bake for 35 minutes.