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1
Preheat oven to 375F (190C).
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2
In a large pot of boiling salted water, cook pasta for 8 to 10 minutes, or until al dente (tender but firm to the bite).
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3
Drain.
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4
Prepare the Bechamel Sauce: In a large saucepan, heat oil over medium-high heat.
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5
Gradually stir in flour and cook until flour pulls away from the side of the pan.
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6
Gradually whisk in hot milk and cook, whisking constantly, until thickened.
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7
Add bay leaf, salt, pepper and nutmeg.
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8
Cook, whisking, for 3 to 4 minutes, or until bubbly.
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9
Remove from heat.
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10
Spread about 1 cup (250 mL) of the tomato sauce in bottom of prepared pan.
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11
Layer half of the pasta on top and spread with half of the remaining tomato sauce.
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12
Top with the remaining pasta, then the remaining tomato sauce.
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13
Spread bechamel sauce evenly over top layer and sprinkle with Parmesan cheese (if using).
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14
Bake in preheated oven for 30 to 35 minutes, or until bubbly and browned on top.
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15
Let cool for about 10 minutes before cutting into 6 squares.
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16
Variations:
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17
To boost calcium, add 1 to 2 cups (250 to 500 mL) blanched chopped calcium greens, such as kale or broccoli, to the lasagna, layering them between the pasta and the sauce.
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18
To increase the protein and calcium content, add 1 cup (250 mL) chopped tofu or soybeans to the tomato sauce.