Step 1

Preheat the oven to 375 degrees Fahrenheit. Spray two single serve ramekins or casserole dishes (about 4 x 5 inches in size) with non-stick cooking spray.

Step 3

In a medium skillet, heat the olive oil over medium-high. Add the onion and garlic. Cook for 3 minutes. Add the spinach, and cook 1 more minute.

Step 5

Reduce the heat to medium. Add the tomato sauce. Stir in the basil, oregano, balsamic vinegar, and black pepper. Simmer 5 minutes. Remove the sauce from the heat. Taste the sauce, and add the salt a little at time until it reaches your taste preferences.

Step 7

To make a lasagna, spoon about 1 tablespoon of the sauce into one of the baking dishes. You will need 3 noodles for each lasagna, so break the 3 sheets into 6 pieces that will fit into your baking dishes. Top the sauce with a piece of noodle.

Step 9

Spoon 3 tablespoons of sauce over the noodle, and top with ¼ cup of black beans. Place another noodle piece on top of the beans, and add 3 more tablespoons of sauce. Next, layer on another ¼ cup of beans. Add the final noodle, and finish with 3 more tablespoons of sauce. Sprinkle with half of the cheese.

Step 11

Repeat the same process for the second lasagna.

Step 13

Loosely cover each dish with aluminum foil, and place them on a baking sheet. Bake covered for 30 minutes or until the noodles are tender. Remove the foil, and bake for another 5 minutes. Let cool for 5 minutes before serving.