Rosie O'Donnell -- First Photo Since Heart Attack

Rosie O'Donnell is bouncier than Kate Upton ... hitting the streets two weeks after suffering a heart attack.

The 50-year-old spent Friday wandering around New York with her kids and new wife Michelle.

You'll recall ... on August 20th Rosie blogged that she went into cardiac arrest the previous week and didn't even know it until she went to a cardiologist days later.