Press Sauté—normal/medium on the Instant Pot and heat 2 tablespoons of the oil. Add the onion, garlic, Anaheim chiles, jalapeño, and tomatoes. Cook, stirring occasionally, for about 3 minutes, until the vegetables are slightly softened. Add the shredded beef, salt, pepper, salsa, and broth. Cook, stirring occasionally, for 3 to 5 minutes, until the mixture is dry and thick. (It should not be saucy; if it is, using a slotted spoon, transfer the beef to a plate, then simmer the cooking liquid until very thick. Return the beef to the pot and stir to combine.) Stir in the cilantro. Press Cancel.