Easy low carb squash salsa

Ingredients:2 tablespoons canola oil1 cup zucchini, small diced1 cup yellow squash, small diced1/2 cup yellow bell pepper, small diced1/4 cup red bell pepper, small diced1/4 cup sugar substitute (recommended: Splenda)1/8 teaspoon kosher salt1/8 teaspoon ground black pepper1 cup cantaloupe, small diced