We decided to show our love this Father's Day by offering up a delicious burger that also happens to be healthy.

To keep our burger lean, we went with a lean ground beef. You also could go for ground turkey, chicken or pork, but read the packages carefully; many ground meats aren't as lean as you might think they are.

Since we removed most of the fat from our burger's meat, we needed to add moisture. We did this by incorporating vegetables. I know, groan! Vegetables don't belong in burgers.

But really, this is a vegetable you would have put on the burger anyway — caramelized onions. They add tons of flavor, moisture and virtually no calories. You also can make the onions well in advance so they're all ready to go when you want to make burgers. To top off the burger, we skipped the cheese and went with a quick homemade barbecue sauce. Best of all, you can make the sauce right on the grill; just bring a little saucepan with a heatproof handle out with you and do all the cooking in the same spot. You'll want to make the sauce first so that you know it's ready to go when the burgers are.