Cauliflower florets 
 | 
8 cups 
 | 
Olive oil 
 | 
1 tablespoon + 
1 tablespoon +  | 
Salt, kosher 
 | |
Tomatoes, whole plum, no-salt added 
 | 
28 ounces 
 | 
Water 
 | 
1 ½ cups 
 | 
Garlic, sliced 
chopped  | 
4 + 
1  | 
Bell pepper, red, diced 
 | 
1 
 | 
Tomato paste 
 | 
2 tablespoons 
 | 
Basil leaves, fresh 
 | 
1 cup 
 | 
Lasagna noodles, whole wheat 
 | 
8 ounces 
 | 
Ricotta 
 | 
1 cup 
 | 
Egg 
 | 
1 large 
 | 
Mozzarella, shredded 
 | 
1 cup 
 | 
Parmesan 
 | 
¼ cup 
 | 
Parsley leaves, fresh, chopped 
 | 
2 tablespoons 
 | 
- Preheat oven to 425°F.
 - Toss the cauliflower with 1-tablespoon oil and ½-teaspoon salt.
 - Spread the florets in an even layer on a baking sheet and roast, tossing once, until tender and golden in spots, about 30 to 35 minutes; cool slightly.
 - Place the tomatoes in a medium bowl, and use your hands to crush them.
 - Rinse the can with the 1 ½-cups water and add it to the bowl with the tomatoes.
 - Heat the remaining oil with the sliced garlic and ½-teaspoon salt in a small Dutch oven over medium heat until the garlic begins to sizzle and becomes aromatic, about 2 minutes.
 - Add the bell pepper and cook, stirring, until soft, about 8 minutes.
 - Add the tomato paste and stir to incorporate, about 30 seconds.
 - Add the crushed tomatoes with their juices and four large basil leaves.
 - Bring to a boil, reduce the heat and simmer, stirring occasionally, until the sauce is thickened, about 40 minutes.
 - Meanwhile, bring a large pot of water to a boil.
 - Add the lasagna noodles one at a time into the pot; cook according to the package directions until al dente.
 - Drain the noodles in a colander.
 - Add 1 to 2 tablespoons oil to the noodles, tossing to coat to prevent them from sticking, and drape over the side of a large bowl.
 - Combine the ricotta, egg, 1 ½-cups roasted cauliflower, and one chopped garlic clove in a food processor and pulse until evenly pureed.
 - Tear the remaining basil into small pieces, add to the food processor and pulse three to four more times to chop the basil finely, but not puree; transfer the mixture to a medium bowl.
 - Spread ¼-cup sauce on the bottom of a 9-by-13-inch baking dish.
 - Place four noodles on the bottom, without overlapping, cutting to fit, if necessary.
 - Spread with half of the cauliflower-ricotta mixture, followed by half of the roasted cauliflower, one-third of the tomato sauce, one-third of the mozzarella, and one-third of the Parmesan.
 - Loosely fit three more noodles on top of the cheese without overlapping.
 - Spread with the remaining cauliflower-ricotta mixture, followed by the remaining roasted cauliflower, one-third more of the tomato sauce, one-third more of the mozzarella, and one-third more of the Parmesan.
 - Top with the remaining four noodles, cutting just to fit.
 - Then add the remaining tomato sauce, mozzarella, and Parmesan.
 - Cover with foil and bake until bubbly and hot, about 20 minutes.
 - Remove the foil and cook until the cheese begins to brown, about 10 minutes more.
 - Allow to rest for 10 minutes so the lasagna will cut more easily.
 - Garnish with the parsley.
 




