Beef with crackers

8 ounces cream cheese (room temperature) 1 cup ranch dressing 10 ounces Rotel Tomatoes (1 can, with juice) 12 1/2 ounces canned chicken (drained and rinsed) 1[...]

1/2 lb sharp cheddar cheese 1/2 lb mild cheddar cheese (use block cheese from the deli, not slices or shredded) or 1/2 lb American cheese (use block cheese[...]