Turn Instant Pot on to Sauté function and add in oil + onion. Sprinkle in beef bouillon, cumin, oregano, chili powder, and salt, sautéing until onion is translucent. Add in meat and cook until fully browned. Drain excess liquid from the meat, and add in the rest of the ingredients, except for the sugar. Cook under the Stew/Meat function on the instant pot for 25 minutes with the vent in the sealed position.

At the end of the cooking time, release the steam manually and taste the stew. Adjust the seasoning as needed with sugar (to counteract acidity from tomatoes), salt, and adobo seasoning. Serve over rice, and enjoy!