Preheat oven to 350 degrees. Spread pecans on a rimmed baking sheet, and bake until lightly browned, 4-6 minutes. (in a time crunch? Don't toast pecans!)
Coursely chop pecans, thinly slice celery (save leaves as a garnish, optional), slice apple, halve grapes. Mix all ingredients together, (reserving 1 tablespoon olive oil for ravioli) set aside until ravioli is ready to serve. For the ravioli, prepare as directed on the package.
Slice tomatoes in half. Heat a medium sized skillet, add 1-2 tablespoons olive oil, and sauté tomatoes until skins just barely start to wrinkle. Add 1-2 tablespoons tomato sauce, heat for 1 minute longer. Toss with ravioli to coat. Use remaining tomato sauce as individually desired.