Wash, peel, and chop the vegetables according to your preference. Uniformly sized pieces will ensure even cooking and a visually appealing result.
Sauté onions, garlic, and your choice of herbs in one tbsp of olive oil
Add the rest of the vegetables, fire roasted tomatoes (undrained), and chicken/vegetable stock. Simmer until warmed through
Add recommended water to pressure canner and place on stove to start heating.
Using funnel, fill jars with vegetable soup and top with liquid leaving a 1/2 inch headspace.
Wipe rim of jar with clean cloth to remove any residue and place lid on top of jar. Screw on band fingertip tight.
Place jars into canner on top of canner rack. Place lid onto canner according to manufacture's instructions.
Allow the canner to heat until a steady stream of steam emits from the lid valve for 10 full minutes.
Place weight on canner valve and allow pressure to come up to 10 psi (or higher depending on your altitude).
Start timer and process for 90 minutes.
When finished, turn off heat and allow canner to completely cool down and pressure returns to zero.
Remove weight and allow an extra 5 minutes after removal.
Remove lid, and place jars onto a towel lined surface. Allow jars to cool, undisturbed for 24 hours.
Remove rings, wipe jars clean, label and store in a cool dry area.