Available in both biscuit and McMuffin form, the sandwiches appear to use the same salsa last seen on the Jalapeno Cheddar McChicken. Besides the salsa, the sandwiches comes with bacon or sausage, eggs, and white Cheddar for about $2.79.
If you live around Houston, it looks like at least a few of the local McDonald's restaurants are running foursquare promotions involving the sandwiches for checking in.
You can check out the promo page for the sandwiches on McDonald's website here and a local television spot for the Jalapeno Salsa Breakfast Sandwiches after the jump.