Everything you eat, she can eat too...unless its spicy.
The more she eats what you eat, she'll be more likely to eat a wide variety of foods later. Yogurt and pudding are good foods for kids to try to feed themselves, it will be messy, but go with it, she'll love the independence. Encourage her, help her (a little) if need be, clap and say "good job" when she gets it to her mouth. At 20 months she should be able to use utensils on her own.
Grilled cheese
quesadillas
tuna/chicken boats
brocolli
chicken noodle soup
lunch meat (with or without the bread)
cheeses
waffles
chicken nuggets
fruit (mandarin oranges, pears, apples, strawberry, blueberry)
veggies-corn, grn beans, brocolli, carrots
Whatever you eat, cut it up for her size and watch her enjoy the new foods.