Perfect addition to your antipasti tray. Or as a topping on your favorite sandwich. The flavor is somewhat tart, salty and spicy. The texture fresh and crunchy.
Place first 7 ingredients (up to and including the jalapeño) in a large bowl, tossing to combine. Cover with plastic wrap; chill for at least 8 hours or overnight. Drain; rinse well. Drain again.
Combine the vinegar, oil, oregano, red pepper, celery seeds, and garlic in a bowl, stirring with a whisk until blended.
Pack the vegetable mixture into a 2-quart jar or several smaller jars. Pour the vinegar mixture over the vegetables until completely covered. If necessary, add up to 1/2 cup water to ensure the vegetables are totally immersed in liquid.
Cover and refrigerate for 3 days to fully develop the flavor and texture. Drain before serving.
Provided they are totally immersed in the liquid, the vegetables will keep in the refrigerator for several weeks.