Prepare the Rice: Cook the rice according to package instructions until tender. Set aside. That is the time when you can add your spices, herbs, and apple cider vinegar (without Nutritional Yeast).
Cook the Spinach (fresh or frozen): Heat olive oil in a skillet over medium heat. Add the fresh (or frozen) spinach leaves and sauté until wilted, about 2-3 minutes. Season with salt and pepper to taste. Remove from heat and set aside if you like decorating or just add to the rice when ready.
Add the Tuna: In a bowl, combine the drained tuna with a pinch of salt and pepper (if you need it, I prefer just drained) You can also add a squeeze of lemon juice for extra flavor.
Assemble the Bowl: Start by placing a serving of cooked rice in a bowl. Top the rice with the cooked spinach (if you didn't mix it before) Arrange the tuna over the spinach.
Add Nigella Seeds: Sprinkle nigella seeds over the tuna and spinach. Nigella seeds have a unique flavor profile, so use them according to your taste preference. 1-2 teaspoons should be perfect. Also, add Nutritional yeast when everything is ready to keep as many nutrients as possible without cooking it - add 2-3 teaspoons of it.
Serve: Serve the Tuna Rice Protein Bowl immediately. Optionally, you can add lemon wedges on the side for squeezing over the bowl before eating. For extra flavor and macronutrients, you can add e.g. avocado and cucumber. Enjoy!