Begin by washing all your vegetables thoroughly under cold water to remove any dirt or residues. Dice the cucumbers, cherry tomatoes, bell peppers, and red onion into bite-sized pieces, ensuring uniform sizes for even mixing.

Take a large mixing bowl and gently combine all the chopped vegetables together. Use a large spatula or spoon to mix them well, ensuring each piece is evenly distributed.

In a small bowl, whisk together olive oil, freshly squeezed lemon juice, salt, and pepper until the mixture is emulsified—a smooth, slightly thickened consistency.

Carefully pour the prepared dressing over the mixed vegetables in the large bowl. Using your spatula, gently toss the salad to ensure every piece is evenly coated.

Garnish your salad with crumbled feta cheese and serve immediately or chill it briefly in the refrigerator for about 10 minutes.