Zucchini Walnut Lasagna

Zucchini Walnut Lasagna

Zucchini Walnut Lasagna

A Keto-friendly, vegetarian lasagna
Course Main Course
Keyword Keto
Prep Time 30 minutes
Cook Time 30 minutes
Total Time 1 hour

Ingredients

  • 1 can tomato paste
  • 1 can diced tomatoes drained
  • 1 white onion finely diced
  • 2 carrots shredded
  • 3 cups mushrooms chopped
  • 2 large zucchinis
  • 1 cup toasted walnuts chopped in blender
  • 2 tsp thyme dried
  • 2 tsp oregana dried
  • 4 tbsp olive oil extra virgin
  • 1 tbsp butter
  • 2 tsp sea salt
  • 2 tsp black pepper med-coarse grind
  • 750 g ricotta
  • 1/2 tsp nutmeg ground
  • 2 cups chopped spinach
  • 1 cup mozzarella cheese shredded
  • 1/2 cup parmesan reggiano grated
  • 10 grape tomatoes sliced
  • 1/2 cup fresh basil leaves

Instructions

Prepare Zucchini

  • Slice zucchini lengthwise into 1/8″ thick slices.  Lightly salt & pepper both sides of each slice.
  • Lightly oil a cookie sheet, or line sheet with a silicon cooking mat, and arrange zucchini slices in a single layer.
  • Setting oven rack so that cookie sheet will be 3-4 inches from broiler.
  • Broil on high for 5 minutes, remove from oven, flip slices and pat dry, then return to oven for an additional 3 minutes.
  • Line a cooling rack with paper towel, and place zucchini slices on it.  Repeat these steps until all slices have been broiled, and set aside.

Prepare Ricotta

  • Mix ricotta, 1/3 of the chopped spinach, and nutmeg in a medium size bowl.  You can add a little salt & pepper if you like.  Set aside.  (I intended to add an eqq to this as well but forgot – the lasagna turned out fine without it.)

Prepare Sauce

  • In one skillet, add a couple tablespoons of olive oil, and saute the onions and shredded carrot until translucent. 
  • In a larger, deep skillet, heat up two tablespoons of olive oil, and 1 tablespoon of butter, and fry the chopped mushrooms along with the thyme.
  • When mushrooms are turning golden, clear a space in the pan and add the tomato sauce, dried basil and oregano. and stir well.
  • When the tomato paste starts to deepen in color, add the drained tomatoes, and the sauteed onion and carrots, and toasted walnuts.  Stir well.
  • The sauce is ready when most of any liquid has evaporated.  Remove from heat and set aside.

Assembly

  • Set cooking rack to middle of the oven, and preheat to 350 degrees.
  • Lightly oil a 9 x 13 baking dish.
  • Put a very thin layer of sauce across the bottom of the dish.
  • Arrange one layer of zucchini slices
  • Spread one third of the sauce over the zucchini, followed by one third of the ricotta mixture.
  • Repeat the previous 2 steps.
  • Spread the shredded mozzarella, followed by the grated parmesan.
  • Arrange sliced tomatoes and fresh basil leaves over top.
  • Place lasagna into oven, and bake for 30 minutes, or until top starts to turn golden around edges.
  • Remove from oven when ready, and let cool for 15 minutes before cutting and serving.