For burgers: Place all the burger ingredients in a mixing bowl. With your hand, mix until the seasoning is well distributed (use gloves if you like).
Use the smallest cookie dough scoop to divide the mixture into 18 portions. Place them onto a baking tray lined with baking parchment. Roll them into balls. Next, press each ball gently down until it is quite flat. With your fingers press down in the center of each patty.
Bake for 10 minutes or until cooked through. If not sure, check with a food thermometer (see note 7).
For cheeseburgers: While the burgers are in the oven, prepare the fillings: thinly cut the pickles (if not using pre-cut), rinse, pat dry the lettuce and cut into smaller pieces. Cut cheese into quarters.
For burger sauce: In a small bowl, mix together ketchup and mayonnaise.
To assemble: Get the bottom half of the burger bun, spread burger sauce over, top it with a slice of cheese, lettuce, burger, cheese (see note 8) a slice of pickle and cover with bun (this can be also spread with burger sauce or ketchup). Secure with a cocktail stick. Repeat with the rest.
Best enjoyed right away!
Notes
Meat: Ground pork or a combination of pork and beef is also possible.
I used sliced mozzarella, but you can use any cheese you like.
You will need about 18 thin slices (either you can buy ready-sliced pickles or get whole pickles and cut them yourself - I needed 5).
Lettuce - we like baby romaine lettuce but butterhead is great too. Its quantity will depend on how much you use it. For 18 burgers, I used 2 heads of baby romaine lettuce.
This is our favorite burger sauce but you can use just ketchup or your favorite sauce.
The internal temperature should reach 160 Fahrenheit (71 Celsius).
Cooking time may vary, depending on the size of the burgers. Check with a food thermometer if they are cooked through, if not sure.
Tip: when your burgers are ready, cover each with a slice of cheese and put them back in the warm oven for a minute or two or until ready to serve (make sure the oven is turned off).
If you prep your veggies and cheese while the burgers are in the oven, you will cut down the prep time by 10 minutes!