Spinach and Beef Lasagna With Ricotta Cheese

Instructions

1. Step 1

   Gather the ingredients.

2. Step 2

   Preheat oven to 350 F. Grease a 9 x 13 x 2-inch baking pan.

3. Step 3

   Heat extra-virgin olive oil in a large skillet over medium heat.

4. Step 4

   Add ground beef, onion, and mushrooms. Cook until ground beef has browned and onion is tender, stirring frequently.

5. Step 5

   Pour off any excess fat. Add the flour, basil, oregano, 1 teaspoon of the salt, and black pepper.

6. Step 6

   Stir to blend and continue cooking for about 2 minutes, stirring constantly.

7. Step 7

   Gradually stir in milk, tomato sauce, and water. Stirring constantly, bring mixture to a boil; remove from heat.

8. Step 8

   In a bowl, beat egg with remaining 1/2 teaspoon salt.

9. Step 9

   Stir in well-drained (and squeezed) spinach and ricotta cheese.

10. Step 10

    Spoon about one-third of the meat mixture into prepared baking dish.

11. Step 11

    Arrange half of the lasagna noodles over the meat mixture.

12. Step 12

    Top the noodle layer with the entire spinach-ricotta mixture.

13. Step 13

    Then top with another one-third of the meat mixture and all of the mozzarella cheese.

14. Step 14

    Finish with remaining lasagna noodles and remaining meat mixture.

15. Step 15

    Sprinkle lasagna evenly with Parmesan cheese.

16. Step 16

    Bake lasagna for about 40 to 45 minutes. Let lasagna stand for about 10 minutes before serving.