Tomato, Tuna, & Caper Sauce - Really Healthy Foods

Ingredients

• 2 cups marinara sauce (preferably homemade, but definitely with no added nasties!)
• 1/4 cup chopped fresh parsley
• 2 tablespoons drained capers, rinsed and chopped
• 1 1/2 teaspoons freshly grated lemon zest
• 1 6-ounce jar tuna chunks, drained and flaked
• Freshly ground pepper, to taste