chicken parm salad subs

Ingredients

• - 1/3 cup vegetable stock
• - 1 cup packed basil leaves
• - a handful fresh flat-leaf parsley
• - a handful fresh mint leaves
• - 1/4 cup extra-virgin olive oil
• - 1 large clove garlic, peeled
• - kosher salt
• - 1/2 cup freshly grated parmigiano-reggiano
• - 4 ripe plum tomatoes, seeded and sliced lengthwise into thin strips
• - 1 small red onion or 1/2 medium onion, very thinly sliced or chopped
• - 1 rotisserie chicken
• - freshly ground black pepper
• - 4 sesame sub rolls, split