7 Ways to Improve the Taste of Jar Pasta Sauce Sautee Some Veggies. The first step to making your jar sauce better is to sautee some garlic in olive oil on your stovetop. ... Mix in Some Meat. ... Add a Splash of Red Wine. ... Spice It Up. ... Get Cheesy. ... Stir in More Dairy. ... Pop It in the Oven.