Place cream cheese, yogurt, mayonnaise and Ranch dressing mix in a large bowl. With an electric mixer, beat on medium until smooth and creamy. Set aside.
Remove crescent rolls from the cans and roll out in one big piece onto a large, greased cookie sheet. Pinch seams together, if needed. Bake for 8-10 minutes or until golden brown. Let cool.
Spread cream cheese mixture onto cooled crust. Top with cheese and veggies.
Use a pizza cutter or large knife to cut into squares. Serve immediately or store in refrigerator in airtight container for up to 3 or 4 days.