This is much faster to cook if you use a pressure cooker or the Instant Pot. It can also be done in any pot but the cooking time will be much longer.
Place the beef in the pot, cover with water, add 3 bay leaves, 2 garlic cloves, ¼ onion, and 1 tablespoon of salt. Let cook. - To cook in a pot will take about 1 hour and 40 minutes.- Instant Pot Set the Meat / Stew option. - Pressure cooker, it takes about 30 minutes after putting the cap on.
Let the meat cool and shred.
Cut the red onion into julienne strips and bathe with the vinegar and the oregano, add about 3 pinches of salt, and let it soak in the vinegar.
Put the pre-cooked vegetables to boil for 3 minutes and then go through cold water.
Cut the avocado in small squares
Cut the lettuce into small squares and rinse in water. Make sure to drain the water very well before mixing with the other ingredients.
Mix the lettuce with the meat, the precooked vegetables, the onion with the marinade, ¼ cup of olive oil and the pepper. Mix everything well, add the avocado at the end.
Taste and add salt to taste.