Pastalaya recipe for 4.5 quart dutch oven

So that's just over a gallon. If I extrapolate back from my 30 gallon recipe (I usually just eyeball something that small but you need some help it seems), I would say 3 pounds of meat. 1 of sausage, pork, and chicken. 1 pound of pasta (can probably use 1.5). 1 pound of seasoning blend. Tablespoon of garlic.

From there, add in whatever tricks and spices you like to achieve the desired taste. This is just very basic as to what will fit in the pot more or less and ratios.