I make a recipe for fish (pan-fried tilapia) served on a lentil pancake. This would be good as a base for a variety of things, marinated chicken breast, a pork chop, other cuts of fish. (It is great with the tilapia, though.)
It does use scallions. Can you (or DD) tolerate green onions? If not, you could just omit them.
The lentil pancakes consist of 1 egg white, 1/2 cup cooked lentils (drained), 1/4 red bell pepper (diced fine), 1 finely chopped scallion, and 1 tbsp flour. You whisk the egg white until fluffy, then fold in the other ingredients. Make two circles of the mixture, and cook over med-high heat for about a minute on each side.
If you want to do it with the tilapia, you'd use 2 6-oz. tilapia fillets, one lemon, 1 garlic clove, and 1 tbsp chopped parsley. Marinate the fish in the refrigerator with the juice of 1/2 a lemon, the crushed garlic clove, the parsley, and some salt and pepper. (You could add a little oil to the marinade, or spray the fillets lightly with oil before cooking.) To cook: remove from the marinade, pat dry, saute about 5 minutes on each side until golden.
The other half of the lemon is supposed to go into a mango salsa, which calls for mango and tomato (one of your forbiddens, I know.) You could still do a tomato-less fruit salsa for the garnish. Lay a fillet over each pancake and garnish with fruit or whatever.