Preheat oven to 350 degrees.
Place bread in food processor and pulse to form breadcrumbs.
Spread crumbs on baking sheet and heat in oven 10-15 minutes or until toasted. Set aside.
Increase oven temp to 375 degrees.
Slice vegetables and place in a large mixing bowl.
Add oil, oregano, garlic and salt and pepper.
Toss vegetables until mixed thoroughly.
Pour veggies onto foil-lined pan and roast 20-25 minutes or until tender.
Cook low carb pasta according to package directions.
To serve, place a small serving of pasta in serving bowl. Cover pasta with veggies. Sprinkle breadcrumbs, parmesan cheese and diced olives over.