Can You Put Frozen Lasagna Straight Into Oven?
Can You Put Frozen Lasagna Straight Into Oven? Store-bought frozen lasagna can be baked as-is, straight from the freezer, in a pre-heated oven. Package directions will indicate how long to bake the lasagna for, but as a general rule, it takes about 90 minutes to bake an average-sized frozen lasagna. Do I need to thaw