How to Make It
Preheat the oven to 350°. Spread the pecans on a small baking sheet and toast in the oven for about 5 minutes, or until fragrant.
In a bowl, whisk together the lemon juice, vinegar, shallot, garlic, salt and pepper. gradually whisk in the oil.
Just before serving, thinly slice the scallions and the pepperoni. Tear the lettuce and watercress into bite-size pieces and place in a bowl. Add the scallions, pepperoni and pecans. Shake the dressing, drizzle it over the salad and toss well. Crumble in the goat cheese, toss again and serve.