meat-less for a day

Surprisingly, I was questioned if I was a vegetarian through my last semester of college and my answer was always "No" with a confused look.
So to put it out there on this blog, no I am not a vegetarian. I love meat like Liz Lemon loves her El Sabor de Soledad. But on this particular day, meat was not in my lunch mostly because it hamburger meat wasn't in the fridge so I decided to resort to another alternative.
Black bean burgers.
I had made black bean burgers before, but they had failed in that they collapsed on the pan and they were mostly collapsed black bean burgers. So this time, I was determined to make them stick and be actual black bean burgers. I was and it was going to happen.

Black Bean Burger with Lime Avocado & Chipotle Mayo
2 slices of whole wheat bread
1/2 can of black beans, drained
1/2 onion-chopped
1 clove of garlic
1 egg
1/2 avocado
lime juice
3 teaspoons of mayo
1 teaspoons of chipotle mayo

Turn stove to medium-high heat and drizzle olive oil onto pan. While warming up, chop up the onion. Place chopped onion onto pan and cook until onion is soft and brown.
While onions are cooking, take garlic clove and chop it into pieces and add it with the onion.
Meanwhile, take 1/2 can of beans and drain them. Pour black beans with the onion and garlic mixture and, with a fork, mush the black beans until fully mushed. Some black beans can be left un-mushed.
Cook and mix all ingredients together until the black bean becomes pasty. Remove from heat and place mixture into a bowl. Add the egg and mix well. Mixture will be liquid-y but when mixed well, the egg will absorb the black bean mixture and mixture won't be as liquid.
Return back to the stove at medium-high heat and place a hamburger sized black bean patty onto the pan and let cook for 3-5 minutes and then flip other side.
While patty is cooking, take avocado, cut it out of the shell and mush it together in a bowl and add the lime juice to your desire and mix well.
Take mayo and mix with chipotle mayo (I mixed the both mayos only because the chipotle one was very spicy and the regular mayo brought down the spiciness of the chipotle, but you can keep the chipotle mayo if you like the spice).
Lay out two slices of toasted bread and spread the chipotle mayo mixture on each side.
Once patty is done, place patty on one slice and place lime avocado on top.
Sandwich together with other slice of bread and enjoy the meatless lunch but yet still be a meat lover at heart.