Unroll the Crescent Rolls and press out flat on a cookie sheet.
Bake as directed or until golden brown (probably a shorter time, since they are flat).
Let cool.
In a bowl, mix together the , mayonnaise, sour cream, cream cheese, and Ranch Dressing.
Spread mixture on cooled crust
Mix together the veggies (carrots, tomatoes, & broccoli) and sprinkle over the top of filling.
Lightly sprinkle the grated cheddar/jack cheese over the top
Top everything with the chopped green onions.
Gently press this last layer until nice and flattened.
Chill for about an hour, then cut into small squares