Combine the first 12 ingredients (water through salt) in a saucepan and bring to a boil. Bring to a boil, reduce heat to medium and let it simmer away for 5 minutes. Remove from heat, cover and let stand 30 minutes.
Place the cayenne peppers (or crushed red pepper flakes), cauliflower, carrots, onion, red bell pepper, green beans, olives, pepperoncini and capers in a large glass jar.
Strain the brine, return it to the saucepan and briefly bring to a simmer.
Carefully and slowly pour the hot brine over the vegetables, pushing the vegetables under the surface of the brine.
Let cool to room temperature. Check the vegetables periodically to make sure they're under the surface of the brine.
Add the olive oil, stir and refrigerate for 3 days.
After 3 days, you can leave it in the big jar or transfer to something smaller as the vegetables will have lost some of their bulk and will take up less room.
Keeps in the refrigerator for 30 days.