Rinse quinoa in a fine mesh strainer and drain. Combine quinoa and water in a medium pot. Stir and bring to a boil. Reduce heat to low, cover, and simmer for 15 minutes. Remove from heat and let it stand for 5 minutes, covered. Fluff with a fork.
Preheat oven to 400 degrees Fahrenheit. Heat oil in a large pot over medium high heat and add onion. Cook until softened, about 3-4 minutes.
Lower the heat to medium and add garlic, tomato paste, and cumin. Cook for 1-2 minutes until well-incorporated.
Add sweet potatoes and water (or broth). Bring to a boil, cover, reduce heat to medium, and cook for 10-15 minutes, or until sweet potatoes are soft (but not mushy!)
Add in the cooked quinoa, chicken, beans, spinach, and sauce. Stir to combine.
Spread into a greased 9x13 inch baking dish. Top with cheese (can leave out for baby’s portion).
Cover and bake for 25-30 minutes until cheese is melted and sweet potatoes are soft.
Enjoy with toppings of choice!