1Wash veggies then cut into 1 1/2 - 2 inch cubes. Clean mushrooms with a damp paper towel, remove stem and slice. Slice sausage 1/4 to 1/2 inch thick. Throw everything into a large mixing bowl.
2Add all the dry ingredients to bowl and toss. Now add the liquid and stir. Pour into 9x13 pan then cover with foil. (spray or oil pan, or line with foil first)
For grill : 40 minutes @ 400(f) degrees, indirect heat... check and stir after 25 minutes...
Oven : 1 hour @ 350(f) degrees
Remove from oven/grill and remove foil. Stir, then allow to set for at least 5 minutes. Stir again before serving. (sauce will thicken some as it sets.)