Toast the dry farro in a saucepan on the stove top with 1.5 tbsp olive oil, until it smells nutty and they’re making a light popping noise, 5-7 minutes. Add the broth, bring to a simmer. Cook the farro until puffed and pleasantly chewy, about 25 mins. Transfer to a large plate, and let cool.
While the farro cooks, now is a good time to do a quick pickle of the red onions if needed, and to chop all your veggies and herbs.
Toss the chickpeas in chili paste and 2 tsp olive oil to lightly coat, and a pinch of sea salt. Set aside.
Toast the pine nuts in a skillet on medium low heat until golden and fragrant, about 5 minutes. Let cool.
Prepare the red wine vinaigrette: in a jar combine the olive oil, red wine vinegar, garlic, oregano, dijon, maple syrup, salt and pepper. Give it a good shake to combine.
In a large mixing bowl add the cooled farro, chopped english cucumber, bell peppers, cherry tomatoes, arugula, parsley, oregano, feta and olives. Sprinkle with the toasted pine nuts (optional to set aside some pine nuts and feta for sprinkling at the end).
Drizzle the salad with the red wine vinaigrette and toss to combine. Transfer to a large salad bowl or serving platter Sprinkle with remaining pine nuts and feta and serve.