I am guessing what you are asking for, is called Chaurice. It is what is sometimes used in red beans & rice.
I tried substituting green onion for the red onion before, all I can tell you is, a 1C change is wayyyyyyy too much. I love green onions, I get 1 to 3 bunches every week to use. This may not be what you want, but thought I would throw it out there.
3 lbs is not a large batch, it affords you the c hance to try it and sample to see how you would like to modify it to make it your way. Just a thought.
Chaurice Sausage
Ingredients
3 lbs Pork with plenty of fat (I use Boston Butt) Cut into 1 inch cubes
1 Medium Spanish Onion, Chopped
2 Tbsp Fresh Garlic, Minced
1 Tbsp Fresh Thyme Leaves, Chopped
4 Tbsp Paprika
1/2 tsp Cayenne
1 tsp Cumin
1 Tbsp Kosher Salt
1 tsp Crushed Red Pepper
1 tsp Fresh Ground Black Pepper
4 tsp Chili Powder
1/4 tsp Ground Allspice
1 pinch Meat Curing Salt (Optional) (Here is what I use:
http://www.butcher-packer.com/pg_curing_dq.htm)
Instructions
Combine all ingredients in a large bowl and toss thoroughly.
Cover and let stand in the refrigerator overnight (this step is optional).
Place all of your grinding equipment in the refrigerator 1 hour before grinding. Using the 1/2″ die for your meat grinder, grind all of the ingredients. Alternatively you could finely mince the ingredients in a food processor or by hand. Cook a small patty to taste for seasonings, reseason if necessary. I make my Chaurice into about 10 inch lengths. When finished, I vacuum seal the links into individual portions and freeze, but after individually freezing first. If you just freeze the raw sausage it will squish badly in the vacuum used to package.
I hope you enjoy all the fun of making sausage. Its not a cheap hobby, but I don't know anyone who has been divorced over it yet. LOL Good luck.