Very easy to make, and yes - filling! I didn't have sunflower seeds, so I used pumpkin seeds. I also substituted a scoop of whey protein powder for an equal amount of flour. I cooked them in a 9x9 dish, and it took 33 minutes to cook. Thank you for sharing!
I couldn't use applesauce (feeding someone allergic to apples), so I substituted extra oil and honey. It turned out quite dry, but I had mine with applesauce on it and it was delicious. As soon as I find an applesauce substitute that makes the bars moister I'm going to make this a lot more often.