Rice, Black Beans and Corn Salad

All ingredients are approximate:

Mix the following in a bowl:
Rice (brown or white), 2 cups cooked -
it is best one day old so it is firm, but I usually warm it in a pan before I toss it together with the other ingredients so it isn't so chewy
Black Beans, 1 can drained and rinsed well
Corn, 1 can drained and rinsed well OR two cups fresh or frozen
Avocado, 1 diced (or more)
Red Onion - Maybe 1/8 - 1/4 cup - just eyeball it, some onions are much stronger than others and less is needed
Garlic Salt - I sprinkle a little in, but usually just put it on the table so others can add their own

Put the following on the side for people to add as they wish:
Tomato
Romaine Lettuce
Cilantro
Tortilla Chips OR tortillas to make burritos

Salsa is good too...