Heat oil in a medium saucepan over medium heat. Add garlic and red pepper flakes; cook about 30 seconds, stirring constantly.  Add tomato paste and cook about 1 to 2 minutes, stirring constantly, until paste browns slightly.

Remove from heat. Carefully add crushed tomatoes. Return to heat and simmer about 20
minutes or until thickened.  Stir in lemon zest.  Serve with Easy Veggie Crisps (recipe below),
steamed or grilled shrimp, crostini or baked polenta sticks.