Engine 2 Raise the Roof Sweet Potato Vegetarian Lasagna

"If you've heard about the Engine 2 Diet and want to try an Engine 2 approved recipe, here's a sample recipe to try. This is Rip Esselstyn's "Raise the Roof" sweet potato vegetarian lasagna. It's so good, he says, that he served it at his own wedding! It's also low in fat and cholesterol-free. Recipe courtesy of The Engine 2 Diet, by Rip Esselstyn. When I made this recipe, I only needed one box of lasagne noodles because the veggie mixture was so plentiful that I couldn't fit in another layer. The flavor is great, and I think you could use rotini noodles and bake it in a casserole dish for an easier preparation. (Leave the sweet potatoes in chunks if you do that.) Notice that the recipe doesn't call for any oil. If you use a non-stick wok, just add a little water to the bottom and it works just fine."
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Ready In:
1hr 30mins
12 slices




  • Pre-heat oven to 400 degrees.
  • Sauté the onion and garlic on high heat for 3 minutes in a wok or nonstick pan. Add the mushrooms and cook until the onions are limp and the mushrooms give up their liquid. Remove them to a large bowl with a slotted spoon. Reserve the mushroom liquid in the pan. Sauté the broccoli and carrots for 5 minutes and add to the mushroom bowl. Sauté the peppers and corn until just beginning to soften. Add them to the vegetable bowl.
  • Drain the tofu by wrapping in paper towels. Break it up directly in the towel and mix into the vegetable bowl. Add spices to the vegetable bowl and combine.
  • To Assemble:

  • Cover the bottom of a 9-by-13-inch casserole with a layer of sauce. Add a layer of noodles. Cover the noodles with sauce. This way the noodles cook in the oven, saving time and energy. Spread the vegetable mixture over the sauced noodles. Cover with a layer of noodles and another dressing of sauce. Add the spinach to the second layer of sauced noodles. Cover the spinach with the mashed sweet potatoes. Add another layer of sauce, the final layer of noodles, and a last topping of sauce. Cover the lasagna with thinly sliced roma tomatoes.
  • Cover with foil and bake in the oven for 45 minutes. Remove the foil, sprinkle with the cashews, and return to the oven for 15 minutes. Let sit for 15 minutes before serving.

Questions & Replies

  1. Hi you only have 4 layers in your 9x13 pan so why 2 boxes of noodles and 2 jars of sauce??


  1. Knock your socks off AND raise the roof! Wowee! This is one of the best lasagnas I've ever had. From Prose's review I knew to use my large 15x13 pan which worked out well. I also did things like, okay those three small onions equal 2 medium ones and this one huge bell pepper is enough! In other words, I tried to cut down as many veggies as possible which worked out well as the 15x13 pan was overbrimming! My guests really liked this and I LOVED it! Going into my Best of 2010 Cookbook. Thanks, Wish I Could Cook. Made for Veggie Recipe Swap.
  2. This is absolutely delicious! The sweet potato mash is a surprisingly good sub for cheese. I didn't miss cheese at all. I had trouble finding gluten-free lasagna noodles, so I ended up using rotini, but I still layered it all in a 13 x 9 inch pan, just like lasagna, and it turned out amazingly lasagna-like. When I make this again (and I WILL), I will either find a bigger pan or reduce the amounts. I think the tofu/veggie mixture could be cut in half. I didn't even use all of it and my pan was overflowing, so I didn't bother with the tomato slices or ground cashews (but I will next time). Fourteen ounces of noodles is definitely enough, but I would not reduce the amount of sauce. I used green peppers instead of red. Anyway, this is a fantastic recipe for feeding a crowd. It's healthy, but it's also hearty, filling, and delicious! Reviewed for Veg*n Swap 14.
  3. i add about a third of a cup of nutritional yeast to the sweet potato. it is excellent! this is the best lasagna recipe!
  4. We made this lasagna last night for Mother's Day. Having read the reviews, I used a deep, disposable foil pan that accommodated all of the ingredients and this worked well. This makes a lot of lasagna! It is a bit prep intensive, which makes it a good company or special occasion dish. It looks really pretty in the pan with the sliced tomatoes on the top and it is chock full of healthy veggies. The dish itself got mixed reviews in my family. Myself and DH liked it, but some of my other family did not. I might recommend serving this recipe to those who mostly follow a vegetarian diet versus a mixed crowd. We served with Recipe #191024. Made for Veggie Swap May 2013.
  5. This is a delicious and versatile lasagna recipe. I also made changes to use what I had on hand, subbing ricotta for tofu, omitting the red peppers and tomatoes, and subbing walnuts for cashews and sprinkling it all at the end with a little parmesan and parsley for beauty's sake. I had to have seconds, it tasted amazing.<br/> I'll agree with the comments of it being too much for one pan; I used two pans and they were jammed. So, use two pans, and you'll be happy that you have one for a friend or for the freezer, or halve the recipe.


  1. I added nutritional yeast to the sweet potato
  2. I recently saw a vegan lasagna where someone added cooked red lentils to the sauce and I thought it was interesting. I know this recipe already has a lot of ingredients but I thought I would toss it out there. I do spinach instead of broccoli.


I'm a recipe junkie and collect way too many cookbooks. But when it's time to actually make something, I quickly turn to the internet... I started avoiding meat more than 20 years ago for environmental reasons. (It takes so many resources and the pollution risks of confinement operations are huge.) I've been vegan for years now and can report that the health benefits are also real. I really don't understand why people insist on eating meat
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