Any carb like rice, potatoes, pasta, bread with any protein like lentils, cheese beans, fish or meat plus any veg.
Many cultures have a rice and bean combination as the 2 form a complete protein
Quinoa, chia seeds, amaranth have all 9 amino acids so are a complete protein in themselves.
Nutritionally dense foods are nuts, seeds, red berries, dark leafy veg, seaweed, olive oil , garlic, coconuts, avocados, eggs, oily fish, pig fat bone broth.
Processed foods are not good for the gut biome and lead to adipose fat which can concentrate around the middle.
Miso, sauerkraut, natto, buttermilk, kefir and Greek yogurt are good for the gut biome as a poor gut biome has been linked to depression, anxiety, adhd and a whole host of disorders.