Vegetarian Lasagna With Easy Roasted Tomato Sauce

Name: Vegetarian Lasagna With Easy Roasted Tomato Sauce
Ingredients: 1 small onion, thinly sliced; 3 garlic cloves, thinly sliced; 2 28-oz. cans whole peeled tomatoes; ½ cup extra-virgin olive oil; 1 Tbsp. plus 1½ tsp. sugar; 1 Tbsp. Diamond Crystal or 1¾ tsp.; Morton kosher salt, plus more; ½ tsp. crushed red pepper flakes; 1 lb. fresh pasta sheets (8–10 9x4" sheets) or 1 lb. dried lasagna noodles; 2 10-oz. packages frozen spinach, thawed, squeezed dry, or 1½ cups chopped cooked greens; 4 Tbsp. extra-virgin olive oil, divided; 1 tsp. Diamond Crystal or ½ tsp. Morton kosher salt; 2 cups whole-milk ricotta (from about one 15-oz. container), divided; 2 oz. Pecorino Romano or Parmesan, finely grated; 1 lb. sliced provolone cheese, divided

"This is a vegetable lasagna that cooks can enjoy, too, not only because it’s delicious, but because it’s simple and stress-free to prepare...."

INGREDIENTS

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1 small onion, thinly sliced

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3 garlic cloves, thinly sliced

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2 28-oz. cans whole peeled tomatoes

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½ cup extra-virgin olive oil

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1 Tbsp. plus 1½ tsp. sugar

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1 Tbsp. Diamond Crystal or 1¾ tsp.

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Morton kosher salt, plus more

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½ tsp. crushed red pepper flakes

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1 lb. fresh pasta sheets (8–10 9x4" sheets) or 1 lb. dried lasagna noodles

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2 10-oz. packages frozen spinach, thawed, squeezed dry, or 1½ cups chopped cooked greens

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4 Tbsp. extra-virgin olive oil, divided

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1 tsp. Diamond Crystal or ½ tsp. Morton kosher salt

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2 cups whole-milk ricotta (from about one 15-oz. container), divided

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2 oz. Pecorino Romano or Parmesan, finely grated

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1 lb. sliced provolone cheese, divided

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