Wash and prepare the vegetables according to the tested directions for each vegetable. Wash, trim, and slice or cube the zucchini.
Combine all vegetables in a large pot or kettle and add enough water to cover the pieces.
Boil 5 minutes.
If desired, add 1 teaspoon canning salt per quart jar.
Fill hot jars with hot vegetable pieces and cooking liquid, leaving 1-inch headspace. Adjust lids.
Process in a pressure canner: pints 75 minutes and quarts 90 minutes. For dial gauge use 11 psi at 0–2,000 ft, 12 psi at 2,001–4,000 ft, 13 psi at 4,001–6,000 ft, and 14 psi at 6,001–8,000 ft. For weighted gauge use 10 psi at 0–1,000 ft and 15 psi above 1,000 ft.