Breads without tomatoes pretzel butt

1 loaf focaccia bread 1/2-1 lb deli meat 1/2 lb deli cheese lettuce (optional) or tomatoes (optional) or onions (optional) or bell peppers (optional) or[...]

2/3 cup dry lentils (I use red but brown, green or a sprouted variety work too) 2 Tbsp flaxseed meal (I use golden flax ground in my Magic Bullet) 1 cup water[...]