Pressure Cooker Salsa Verde Pork Tostadas

"These pressure cooker salsa verde pork tostadas are made from a FROZEN Costco pork sirloin roast. Your Instant Pot will turn this into tender, flavorful, and EASY dinner in about an hour and a half.We buy these Costco pork sirloin roasts ALL the time. With 7 kids, you’d better have a Costco or Sam’s Club close by, or you’ll never stop making grocery store runs. Bulk in clearly in the cards for me for years and years to come."