1. To make Quick Pesto: Place basil and garlic in food processor, and process until finely chopped. Add pine nuts and nutritional yeast, and process 1 minute, or until pine nuts are finely chopped and mixture is paste-like. With motor running, add olive oil in steady stream. Process 1 minute more, or until smooth. Season with salt and pepper, if desired.
2. To make Broiled Tomatoes: Preheat oven to broil. Place tomatoes cut-side up on baking sheet. Spread each tomato half with 2 teaspoons Quick Pesto, and sprinkle with 2 teaspoons panko breadcrumbs. Broil 3 to 5 minutes, or until breadcrumbs are browned and pesto is bubbly. Serve as a side dish.