I have 3 oyster 1450 watt roasting pans. I want to run them off 1 breaker and not sure what size I would need. I have axcess to the panel with 200amp service and want to dedicate 1 4box outlet just for that alone. Help me please.

You first need to understand its not the breaker size but the gauge of your wiring. I think you'd need #10 wire with a 30 amp breaker. It would be rare to find #10 in most homes, do you know your wire size? Is this a home or a restaurant

If these appliances have standard 15 or 20A plugs on them (which I suspect they do), and are 120V (which I suspect they are) then you have no choice but to go with 15 or 20A circuits. This would mean you need three 15 or 20A (20A definitely preferred) circuits, one for each.

Is this your home or a commercial space?