Chicken Panini

2 1/2 cups chopped, cooked chicken
1/4 cup mayo
2 T bacon bits
2 T thinly sliced green onion
2 T Ranch dressing
8 slices of bread
1 tomato cut into 8 thin slices
4 slices cheese

Mix chicken, mayo, bacon bits, onion, and ranch. Spread on 4 of the bread slices. Top with tomato and cheese and other bread. Grill on a George Foreman type grill (sprayed with PAM) until golden brown.