Cook the protein pasta according to package instructions until al dente. Drain and set aside.
In a large skillet, heat the olive oil over medium heat. Add the minced garlic and cook for 1 minute until fragrant.
Add the halved cherry tomatoes to the skillet and cook for 2-3 minutes until they start to soften.
Add the drained tuna to the skillet and break it into chunks with a spoon. Cook until heated through.
Add the cooked pasta to the skillet and toss to combine with the tuna and tomatoes.
Season with salt, pepper, and fresh lemon juice. Toss to coat evenly.
Remove from heat, garnish with chopped parsley, and serve immediately.