I honestly didn't give this recipe much hope.  Once I bought the Swiss Chard (what the heck IS this stuff?) and saw that there weren't a whole lot of spices, I pretty much wrote this recipe off as average.
Then I came home and smelled the delicious pasta that had been cooking for several hours.
And THEN we ate it. How good was it?  Scroll down to the Verdict.
INGREDIENTS
  - 2  28-ounce cans diced      tomatoes, drained
- 3  cloves garlic, finely      chopped
- 1/4  cup  fresh      oregano, chopped
- Kosher salt and pepper
- 16  ounces  fresh      ricotta
- 1/2  cup  fresh      flat-leaf parsley, chopped
- 1/2  cup  grated      Parmesan
- 12  ounces  dry      lasagna noodles
- 1  bunch Swiss chard,      tough stems removed and torn into large pieces
- 12  ounces       mozzarella, grated
DIRECTIONS
  In a medium bowl, combine the tomatoes, garlic, oregano, 1/2 teaspoon salt, and 1/2 teaspoon pepper.
 
In another medium bowl, combine the ricotta, parsley, Parmesan, and 1/4 teaspoon pepper.
Spoon 1/3 cup of the tomato mixture into the bowl of a slow cooker. Top with a single layer of noodles, breaking them to fit as necessary. Add half the Swiss chard. Dollop with a third of the ricotta mixture and a third of the remaining tomato mixture. Sprinkle with a third of the mozzarella. Add another layer of noodles and repeat with the other ingredients.
 Finish with a layer of noodles and the remaining ricotta mixture, tomato mixture, and mozzarella. Set the slow cooker to low and cook, covered, until the noodles are tender, 2 to 3 hours.
 VERDICT
Oh... wow.  This was REALLY good.  It was so good that my non-pasta loving husband called it my "best recipe EVER."
Swiss Chard?  I don't know how else it's usually prepared, but it was good in this dish.  Similar to spinach?  Whatever it was, it didn't taste like a green leafy vegetable that's healthy for you.
