I buy ground turkey on sale, package it in 4 oz. servings in little freezer bags and freeze it for easy portion control. For this, I used one pkg (4 oz) of ground turkey to make one sandwich. I have a peeled onion in a plastic bag in the fridge door and slice off 1/4 slices at a time which gives me about 1 TBSP of onion. For this, I heated a small skillet with 1 tsp of olive oil and sauteed 1 TBSP of chopped onions until tender. I added 4 oz. of ground turkey (thawed before hand) and 1 whole tomato and 1 mushroom, chopped into 1/4 or so pieces. I sprinkled a bit of salt, pepper, garlic powder and cayenne on and let cook until down. I served on a toasted ciabatta with leftover soup.