Spinach Salad with Feta Cheese

Name: Spinach Salad with Feta Cheese
Prep time: 25 min
Cook time: 25 min
Total time: 25 min
Yield: 2
Ingredients: 1/2 tsp cinnamon; 2 tomatoes; 1/2 cup olive oil; salt and pepper; 2 tbsp lemon juice; 2 tbsp wine vinegar; 500 g fresh lettuce; 1 cucumber, sliced; 1/2 cup feta cheese; 2 red onions; fresh spinach, as needed