Make croutons by cutting french bread into large cubes. Place on large rimmed baking sheet and drizzle with olive oil/melted butter and sprinkle with garlic powder, salt, & pepper. Gently mix. Bake at 350* for approx 15 minutes, stirring once during baking, until croutons are just starting to turn light golden, but are still soft (they will harden up a bit once cooled). Do not over bake!
Make dressing by adding (olive oil, balsamic vinegar, garlic, mustard, salt & pepper into small bowl and whisking until well combined and slightly thick. Or combine all ingredients into a small jar w/lid and shake until well combined.
Prep all veggies (tomatoes, cucumber, onion, bell pepper, olives) and place into bottom of large bowl. Add about 3/4 of the dressing and lightly toss.
Once croutons have cooled, place croutons in bowl with veggies and gently mix. Add the remaining dressing if desired.
Top with fresh basil and a round of fresh cracked pepper.
Enjoy!