Spinach Salad with ketchup

3 tablespoons minced onions 3 tablespoons peanut oil or 3 tablespoons canola oil 2 tablespoons distilled white vinegar 1 1/2 tablespoons finely grated fresh[...]

1 teaspoon salt 1/2 teaspoon cayenne pepper 1/2 teaspoon dry mustard 2 tablespoons vinegar (light, such as apple cider) 2 tablespoons ketchup 1/3 cup honey 2[...]

1 lb fresh spinach , cleaned,leaves removed and stems reserved 4 plum tomatoes 2 oranges , cut into sections,zested 6 mushrooms , sliced thinly 1 red onion ,[...]