The burger pictured is one I made. Here's the original recipe from Happy Herbivore. Below you can see the recipe along with comments about my additions and tips for saving money and time.
15 ounces black beans, drained and rinsed (1 can or 2 cups cooked beans)
2 Tablespoons ketchup
1 Tablespoon yellow mustard (any type)
1 teaspoon garlic powder
1 teaspoon onion powder
1/3 cup instant oats (if you only have rolled oats, pulse in blender for a bit to make your own instant oats)
(I like to add 1 Tablespoon of steak sauce - something like A1. Then I typically cut back to 1/2 teaspoon garlic powder and 1/2 teaspoon onion powder)
Preheat oven to 400F. Grease a cookie sheet or line with parchment paper (I use parchment paper - why not cut back on added calories plus it makes for easier clean up.) and set aside. In a mixing bowl, mash black beans with a fork until mostly pureed but still have some half beans and bean parts left. Stir in condiments well combined. Then mix in oats. Divide into 4 equal portions and shape into thin patties. Bake for 7 minutes, carefully flip over and bake for another 7 minutes, or until crusty on the outside. Slap into a bun with extra condiments and eat!
More of my comments:
Cooking your own beans can save money. I like to make a batch in the crock pot. Make plenty then you can use 2 cups to make the burgers. Then freeze any extra to use later. I would suggest freezing in 1 cup or 2 cup increments. Same concept as having canned food in your pantry but you'll be making a large pot of beans then storing in handy sized containers in your freezer. I rotate what type of bean I make and keep a few varieties on hand in the freezer. Of course, I usually try to have canned ones on hand too. It's good to be prepared.
These veggie burgers freeze well also. You can always double or triple the recipe then freeze your cooked veggie burgers. Then you have a very quick meal on hand in the freezer.
And finally, you may have noticed that my "bun" doesn't look like a standard hamburger bun. I like the concept of the "sandwich thins" bread but not the ingredients list and the way they stick to my teeth (usually a sign of unhealthy bread) so I just buy the healthiest pita bread I can find - the medium size - then slice lengthwise. I have experimented with making my own pita bread. It was fun and tasted great but that takes time. I love making my own food but am always having to balance everything with the time I have. Maybe you can relate? If so, go for the pre made pita bread. ;)