This is a hearty, meaty lasagna recipe. You have two choices here. If you’re up for it, you can make your own sauce, which takes about 2 hours. Or, to save time, you can substitute your favorite store-bought sauce. We have done both. It’s all up to you. Our homemade sauce will make more than what’s needed for one lasagna. Since it takes so long to make the sauce, we always make sure we have enough for a second lasagna or to use, as is, over pasta for another night. You can save the extra sauce in the refrigerator up to 3 days or in the freezer up to 3 months.