Broccoli Cauliflower Ranch Salad

Name: Broccoli Cauliflower Ranch Salad
Cuisine: American
Ingredients: 1 bunch broccoli; 1 head cauliflower; 4 sticks celery; 1/4 cup diced red onion (If you prefer, use green onions.); 1-1/2 cups frozen peas (The petite ones are nice.); 1 cup mayonnaise, NOT salad dressing; 8 ounces sour cream; 1 (1-ounce) packet dry Hidden Valley Ranch salad dressing mix - NOT the dip mix; 1-1/2 teaspoons dill weed; 1/2 teaspoon garlic powder (Or use a couple of cloves of chopped garlic.)