In a extra-large salad bowl combine greens and lettuces. Top with tomatoes, red onion, sweet pepper, beans, pepperoni, and cheese. Cover and chill up to 6 hours. Makes 20 servings.
Herb Dressing: In screw-top jar combine 1/2 cup extra-virgin olive oil; 1/3 cup white balsamic vinegar; 1/4 cup snipped Italian (flat-leaf) parsley; 1/4 cup snipped fresh basil; 4 garlic cloves, minced; 1 teaspoon sea salt or 3/4 teaspoon salt; and 1/2 teaspoon black pepper. Cover and shake. Before serving, shake dressing well; pour over salad and toss to coat. Sprinkle with croutons.