Wash the meat, pat dry, marinate with Teriyaki sauce and chill. Peel onion and cut into fine cubes. Pour the pineapple into a sieve and finely chop the flesh. Heat 1 tbsp. oil, fry onion cubes for approx. 2 minutes while stirring until transparent.
Add the chili sauce and pineapple. Heat 1 tablespoon of oil in a frying pan. Fry the meat at medium heat in portions for about 5 minutes, turning. Season with salt. Arrange salsa and meat in small bowls.