Bread Monster

Rampage. When the bread monster reduces a creature to 0 hit points with a melee attack on its turn, the bread monster can take a bonus action to move up to half its speed and make a bite attack.

Multiattack. The bread monster makes three attacks: one with its bite and two with its tentacles.

Bite. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) piercing damage. 

Tentacle. Melee Weapon Attack: +7 to hit, reach 10 ft., one target. Hit: 11 (2d6 + 4) bludgeoning damage. If the target is Medium or smaller, it is grappled (escape DC 13) and restrained until the grapple ends. The bread monster has four tentacles, each of which can grapple one target.

Tentacle Slam. The bread monster slams creatures grappled by it into each other or a solid surface. Each creature must succeed on a DC 15 Constitution saving throw or take 11 (2d6 + 4) bludgeoning damage and be stunned until the end of the monster's next turn. On a successful save, the target takes half the bludgeoning damage and isn't stunned.

Swallow. The bread monster makes one bite attack against a Medium or smaller creature it is grappling. If the target is a Medium or smaller creature grappled by the bread monster, that creature is swallowed, and the grapple ends. While swallowed, the creature is blinded and restrained, it has total cover against attacks and other effects outside the bread monster, and it takes 11 (2d6 + 4) bludgeoning damage at the start of each of the monster's turns.

If the bread monster takes 30 damage or more on a single turn from a creature inside it, the bread monster must succeed on a DC 15 Constitution saving throw at the end of that turn or regurgitate the swallowed creature, which falls prone in a space within 10 feet of the monster. If the bread monster dies, a swallowed creature is no longer restrained by it and can escape from the corpse using 10 feet of movement, exiting prone.