Other mood enhancers: Proper lighting, flowers that bring life to a room (but not fussiness), and pleasant smells, such as palo santo (or food cooking).
Tomatoes contain other mood enhancers, such as folate and magnesium, as well as iron and vitamin B6, both needed by your brain to produce important mood - regulating neurotransmitters such as serotonin, dopamine, and norepinephrine.