1In medium bowl, mix cream cheese, Gouda cheese and bacon bits until well blended. Stir in tomatoes. Cover; refrigerate 45 to 60 minutes or until firm enough to shape into balls.
2Place pecans in small shallow bowl. Shape cheese mixture into 28 (1-inch) balls, about 2 teaspoons cheese mixture for each ball. Roll in pecans to coat.
3Serve immediately, or cover with plastic wrap and refrigerate until ready to serve (up to 24 hours).