Cook the Farro: Cook the pearled farro according to package instructions. Once cooked, drain any excess water and spread it on a baking sheet to cool quickly to room temperature.
Toast the Walnuts: While the farro cooks, place the walnut halves in a dry skillet over medium heat. Toast for 3-4 minutes, tossing frequently, until fragrant and slightly browned. Remove from heat, set aside to cool, and then roughly chop.
Start the Vinaigrette: In a large serving bowl, scoop out one half of the avocado. Using a fork, mash it against the side of the bowl until it is mostly smooth. To the mashed avocado, add the lemon zest, lemon juice, grated garlic, Dijon mustard, oregano, smoked paprika, salt, and pepper. Whisk vigorously to combine into a thick paste.
Create the Emulsion: While continuously whisking the avocado-spice mixture, slowly drizzle in the extra virgin olive oil. Continue to whisk until the vinaigrette is smooth, creamy, and fully combined.
Assemble the Salad: To the bowl containing the vinaigrette, add the cooled farro, rinsed chickpeas, chopped cucumbers, halved cherry tomatoes, chopped roasted red pepper, and thinly sliced red onion.
Gently Fold: Using a large spatula, gently fold all the ingredients together until everything is evenly coated in the creamy vinaigrette.
Add Final Touches: Chop the remaining avocado half into chunks and add it to the bowl along with the fresh parsley, dill, and the toasted walnuts. Fold once or twice more, being careful not to break up the avocado chunks.
Serve: Taste the salad and adjust seasoning if necessary. Divide evenly among four bowls and serve immediately for the best texture and color.