Mix the sauce ingredients together and stir well until combined. Set aside
Get the griddle nice and hot and add the beef. Spread it out with a spatula. Top with the onions and season with salt and pepper.
Allow to cook for a few minutes, then start chopping and mixing everything together breaking down the onions and breaking up the beef. Add in the adobo, sazon, and garlic powder and continue to cook, mix, and chop until the beef is browned and cooked through. Slide the meat into a pile in the corner of the griddle.
In small batches depending on the amount of space you have, add some tortillas to the griddle. Cook on each side for a minute or two, then place a piece of cheese on top.
Add on some meat and a small drizzle of the sauce. Fold over and press. Cook for a few minutes on each side to crisp up, brown, and melt the cheese. Make sure you are getting some good browned bits of cheese and meat around the edges.
Remove from the griddle and repeat with the remaining tortillas and meat.
Open each taco and add a little bit of chopped pickle, tomato, and lettuce, then close it back up and eat. Serve with the extra sauce.