repare-Ahead Tips for Barilla Gluten Free Oven-Ready Lasagne: 1. May be prepared up to 24 hours in advance of baking. Prepare the lasagne per package directions #1-5. Then cover with foil and store in the refrigerator at or below 40 degrees F. When ready, bake on middle rack for 50 minutes at 425 degrees F. Then remove foil and bake for an additional 20 minutes. Let rest before cutting. 2. To freeze, we recommend that you do not bake before freezing. Assemble the lasagne in a freezer safe/oven safe container, covered tightly. When you are ready to prepare the lasagne, defrost in the refrigerator for 24 hours, then bake at 375 degrees F for 70 minutes.